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56915742870 = 2325790342449
BaseRepresentation
bin110101000000011100…
…010101000010010110
312102220120000022100200
4311000130111002112
51413030412232440
642051405521330
74053265555260
oct650034250226
9172816008320
1056915742870
11221574a9028
12b044b73246
1354a078497c
142a7cdd6b30
151731ab8c30
hexd40715096

56915742870 has 48 divisors (see below), whose sum is σ = 169121066400. Its totient is φ = 13009312512.

The previous prime is 56915742869. The next prime is 56915742887. The reversal of 56915742870 is 7824751965.

56915742870 is a `hidden beast` number, since 5 + 69 + 1 + 574 + 2 + 8 + 7 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45170595 + ... + 45171854.

It is an arithmetic number, because the mean of its divisors is an integer number (3523355550).

Almost surely, 256915742870 is an apocalyptic number.

56915742870 is an abundant number, since it is smaller than the sum of its proper divisors (112205323530).

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

56915742870 is a wasteful number, since it uses less digits than its factorization.

56915742870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90342469 (or 90342466 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 56915742870 in words is "fifty-six billion, nine hundred fifteen million, seven hundred forty-two thousand, eight hundred seventy".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 630 90342449 180684898 271027347 451712245 542054694 632397143 813082041 903424490 1264794286 1355136735 1626164082 1897191429 2710273470 3161985715 3794382858 4065410205 5691574287 6323971430 8130820410 9485957145 11383148574 18971914290 28457871435 56915742870