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56968918878 = 2337325455281
BaseRepresentation
bin110101000011100111…
…001011011101011110
312110001021001221010110
4311003213023131132
51413133020401003
642100545350450
74054512551334
oct650347133536
9173037057113
1056968918878
1122184518a43
12b05a938426
1354ab7b2871
142a860b9b54
1517365bea03
hexd439cb75e

56968918878 has 16 divisors (see below), whose sum is σ = 114243305616. Its totient is φ = 18938728320.

The previous prime is 56968918871. The next prime is 56968918889. The reversal of 56968918878 is 87881986965.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56968918871) 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, 12725403 + ... + 12729878.

It is an arithmetic number, because the mean of its divisors is an integer number (7140206601).

Almost surely, 256968918878 is an apocalyptic number.

56968918878 is an abundant number, since it is smaller than the sum of its proper divisors (57274386738).

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

56968918878 is a wasteful number, since it uses less digits than its factorization.

56968918878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25455659.

The product of its digits is 418037760, while the sum is 75.

The spelling of 56968918878 in words is "fifty-six billion, nine hundred sixty-eight million, nine hundred eighteen thousand, eight hundred seventy-eight".

Divisors: 1 2 3 6 373 746 1119 2238 25455281 50910562 76365843 152731686 9494819813 18989639626 28484459439 56968918878