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15112130331 = 317793750839
BaseRepresentation
bin11100001001100000…
…01100111100011011
31110000012010202120210
432010300030330123
5221422201132311
610535321222203
71043330663004
oct160460147433
943005122523
1015112130331
116455449211
122b19031963
13156ab48c6c
14a350921ab
155d6ab33a6
hex384c0cf1b

15112130331 has 16 divisors (see below), whose sum is σ = 21604838400. Its totient is φ = 9362091648.

The previous prime is 15112130329. The next prime is 15112130393. The reversal of 15112130331 is 13303121151.

It is not a de Polignac number, because 15112130331 - 21 = 15112130329 is a prime.

It is a super-2 number, since 2×151121303312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15112130298 and 15112130307.

It is not an unprimeable number, because it can be changed into a prime (15112530331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1871391 + ... + 1879448.

It is an arithmetic number, because the mean of its divisors is an integer number (1350302400).

Almost surely, 215112130331 is an apocalyptic number.

15112130331 is a deficient number, since it is larger than the sum of its proper divisors (6492708069).

15112130331 is a wasteful number, since it uses less digits than its factorization.

15112130331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750938.

The product of its (nonzero) digits is 270, while the sum is 21.

Adding to 15112130331 its reverse (13303121151), we get a palindrome (28415251482).

The spelling of 15112130331 in words is "fifteen billion, one hundred twelve million, one hundred thirty thousand, three hundred thirty-one".

Divisors: 1 3 17 51 79 237 1343 4029 3750839 11252517 63764263 191292789 296316281 888948843 5037376777 15112130331