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68800056635 = 5178349919543
BaseRepresentation
bin100000000010011001…
…1011000110100111011
320120120210110000000202
41000010303120310323
52111400303303020
651334543552415
74653633555332
oct1000463306473
9216523400022
1068800056635
11271a5924942
1211400bbb70b
136645972bab
1434894dcd19
151bca0d6e75
hex1004cd8d3b

68800056635 has 32 divisors (see below), whose sum is σ = 88651584000. Its totient is φ = 51073095168.

The previous prime is 68800056557. The next prime is 68800056649. The reversal of 68800056635 is 53665000886.

It is not a de Polignac number, because 68800056635 - 220 = 68799008059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68800056635.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3510674 + ... + 3530216.

It is an arithmetic number, because the mean of its divisors is an integer number (2770362000).

Almost surely, 268800056635 is an apocalyptic number.

68800056635 is a deficient number, since it is larger than the sum of its proper divisors (19851527365).

68800056635 is a wasteful number, since it uses less digits than its factorization.

68800056635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20147.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 68800056635 in words is "sixty-eight billion, eight hundred million, fifty-six thousand, six hundred thirty-five".

Divisors: 1 5 17 83 85 415 499 1411 2495 7055 8483 19543 41417 42415 97715 207085 332231 704089 1622069 1661155 3520445 8110345 9751957 27575173 48759785 137875865 165783269 809412431 828916345 4047062155 13760011327 68800056635