Base | Representation |
---|---|
bin | 101110110110… |
… | …001101111010 |
3 | 212002220221200 |
4 | 232312031322 |
5 | 11120440243 |
6 | 1115115030 |
7 | 206245533 |
oct | 56661572 |
9 | 25086850 |
10 | 12280698 |
11 | 6a28741 |
12 | 4142a76 |
13 | 270c9b1 |
14 | 18b968a |
15 | 1128ad3 |
hex | bb637a |
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".
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