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12280698 = 2321767599
BaseRepresentation
bin101110110110…
…001101111010
3212002220221200
4232312031322
511120440243
61115115030
7206245533
oct56661572
925086850
1012280698
116a28741
124142a76
13270c9b1
1418b968a
151128ad3
hexbb637a

12280698 has 48 divisors (see below), whose sum is σ = 28641600. Its totient is φ = 3788928.

The previous prime is 12280693. The next prime is 12280721. The reversal of 12280698 is 89608221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12280693) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20203 + ... + 20801.

It is an arithmetic number, because the mean of its divisors is an integer number (596700).

Almost surely, 212280698 is an apocalyptic number.

12280698 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12280698, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14320800).

12280698 is an abundant number, since it is smaller than the sum of its proper divisors (16360902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12280698 is a wasteful number, since it uses less digits than its factorization.

12280698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 12280698 is about 3504.3826845823. The cubic root of 12280698 is about 230.7142133972.

The spelling of 12280698 in words is "twelve million, two hundred eighty thousand, six hundred ninety-eight".

Divisors: 1 2 3 6 9 17 18 34 51 67 102 134 153 201 306 402 599 603 1139 1198 1206 1797 2278 3417 3594 5391 6834 10183 10251 10782 20366 20502 30549 40133 61098 80266 91647 120399 183294 240798 361197 682261 722394 1364522 2046783 4093566 6140349 12280698