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15107683997 = 719113591609
BaseRepresentation
bin11100001000111110…
…01111011010011101
31102222212202212100202
432010133033122131
5221420031341442
610535042033245
71043245123640
oct160437173235
942885685322
1015107683997
11645299165a
122b17648825
131569c501b3
14a34655a57
155d64d5c32
hex3847cf69d

15107683997 has 8 divisors (see below), whose sum is σ = 18174657600. Its totient is φ = 12267893664.

The previous prime is 15107683957. The next prime is 15107683999. The reversal of 15107683997 is 79938670151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15107683997 - 28 = 15107683741 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 (15107683999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56795672 + ... + 56795937.

It is an arithmetic number, because the mean of its divisors is an integer number (2271832200).

Almost surely, 215107683997 is an apocalyptic number.

It is an amenable number.

15107683997 is a deficient number, since it is larger than the sum of its proper divisors (3066973603).

15107683997 is a wasteful number, since it uses less digits than its factorization.

15107683997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113591635.

The product of its (nonzero) digits is 2857680, while the sum is 56.

The spelling of 15107683997 in words is "fifteen billion, one hundred seven million, six hundred eighty-three thousand, nine hundred ninety-seven".

Divisors: 1 7 19 133 113591609 795141263 2158240571 15107683997