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3124930872 = 233718600779
BaseRepresentation
bin1011101001000010…
…1010100100111000
322001210002221021110
42322100222210320
522344440241442
61234030040320
7140303321430
oct27220524470
98053087243
103124930872
111363a3a8a8
127326490a0
133aa54692b
142190472c0
1513452069c
hexba42a938

3124930872 has 32 divisors (see below), whose sum is σ = 8928374400. Its totient is φ = 892837344.

The previous prime is 3124930859. The next prime is 3124930883. The reversal of 3124930872 is 2780394213.

It is a self number, because there is not a number n which added to its sum of digits gives 3124930872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9300222 + ... + 9300557.

It is an arithmetic number, because the mean of its divisors is an integer number (279011700).

Almost surely, 23124930872 is an apocalyptic number.

It is an amenable number.

3124930872 is an abundant number, since it is smaller than the sum of its proper divisors (5803443528).

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

3124930872 is a wasteful number, since it uses less digits than its factorization.

3124930872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18600795 (or 18600791 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 3124930872 is about 55901.0811344468. The cubic root of 3124930872 is about 1461.9980886804.

The spelling of 3124930872 in words is "three billion, one hundred twenty-four million, nine hundred thirty thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 18600779 37201558 55802337 74403116 111604674 130205453 148806232 223209348 260410906 390616359 446418696 520821812 781232718 1041643624 1562465436 3124930872