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68724046886 = 21159149355343
BaseRepresentation
bin100000000000001000…
…1011011110000100110
320120101111102022020212
41000000101123300212
52111221324000021
651323230455422
74652021521505
oct1000021336046
9216344368225
1068724046886
1127166a29670
121139b664572
136632cabb01
14347d39483c
151bc35c085b
hex100045bc26

68724046886 has 32 divisors (see below), whose sum is σ = 115131456000. Its totient is φ = 30502557280.

The previous prime is 68724046879. The next prime is 68724046891. The reversal of 68724046886 is 68864042786.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15731 + ... + 371073.

It is an arithmetic number, because the mean of its divisors is an integer number (3597858000).

Almost surely, 268724046886 is an apocalyptic number.

68724046886 is a deficient number, since it is larger than the sum of its proper divisors (46407409114).

68724046886 is a wasteful number, since it uses less digits than its factorization.

68724046886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355564.

The product of its (nonzero) digits is 24772608, while the sum is 59.

The spelling of 68724046886 in words is "sixty-eight billion, seven hundred twenty-four million, forty-six thousand, eight hundred eighty-six".

Divisors: 1 2 11 22 59 118 149 298 649 1298 1639 3278 8791 17582 96701 193402 355343 710686 3908773 7817546 20965237 41930474 52946107 105892214 230617607 461235214 582407177 1164814354 3123820313 6247640626 34362023443 68724046886