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68888827610 = 2573599157543
BaseRepresentation
bin100000000101000011…
…0000001011011011010
320120210222111000220122
41000022012001123122
52112041014440420
651351434353242
74656062242001
oct1001206013332
9216728430818
1068888827610
1127240a46889
121142688b822
13665b1845b5
143497209c38
151bd2cbe725
hex100a1816da

68888827610 has 32 divisors (see below), whose sum is σ = 125909164800. Its totient is φ = 27132513408.

The previous prime is 68888827589. The next prime is 68888827661. The reversal of 68888827610 is 1672888886.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358499 + ... + 516041.

It is an arithmetic number, because the mean of its divisors is an integer number (3934661400).

Almost surely, 268888827610 is an apocalyptic number.

68888827610 is a deficient number, since it is larger than the sum of its proper divisors (57020337190).

68888827610 is a wasteful number, since it uses less digits than its factorization.

68888827610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158222.

The product of its (nonzero) digits is 16515072, while the sum is 62.

The spelling of 68888827610 in words is "sixty-eight billion, eight hundred eighty-eight million, eight hundred twenty-seven thousand, six hundred ten".

Divisors: 1 2 5 10 73 146 365 599 730 1198 2995 5990 43727 87454 157543 218635 315086 437270 787715 1575430 11500639 23001278 57503195 94368257 115006390 188736514 471841285 943682570 6888882761 13777765522 34444413805 68888827610