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379772317 = 2691411793
BaseRepresentation
bin10110101000101…
…101110110011101
3222110121102200101
4112220231312131
51234210203232
6101403501101
712261003631
oct2650556635
9873542611
10379772317
1118540a621
12a7227791
13608ab662
143861adc1
152351a1e7
hex16a2dd9d

379772317 has 4 divisors (see below), whose sum is σ = 381184380. Its totient is φ = 378360256.

The previous prime is 379772311. The next prime is 379772347. The reversal of 379772317 is 713277973.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 713277973 = 1619440567.

It can be written as a sum of positive squares in 2 ways, for example, as 22524516 + 357247801 = 4746^2 + 18901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-379772317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (379772311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705628 + ... + 706165.

It is an arithmetic number, because the mean of its divisors is an integer number (95296095).

Almost surely, 2379772317 is an apocalyptic number.

It is an amenable number.

379772317 is a deficient number, since it is larger than the sum of its proper divisors (1412063).

379772317 is a wasteful number, since it uses less digits than its factorization.

379772317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412062.

The product of its digits is 388962, while the sum is 46.

The square root of 379772317 is about 19487.7478688534. The cubic root of 379772317 is about 724.1709537241.

The spelling of 379772317 in words is "three hundred seventy-nine million, seven hundred seventy-two thousand, three hundred seventeen".

Divisors: 1 269 1411793 379772317