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68842177534 = 2138573089587
BaseRepresentation
bin100000000011101010…
…0000100001111111110
320120200201200222001001
41000013110010033332
52111442044140114
651343050440514
74654654565644
oct1000724041776
9216621628031
1068842177534
11272176839a9
121141313313a
1366515ccbc0
143490d45194
151bcdb57374
hex10075043fe

68842177534 has 16 divisors (see below), whose sum is σ = 111336393168. Its totient is φ = 31736227392.

The previous prime is 68842177531. The next prime is 68842177543. The reversal of 68842177534 is 43577124886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68842177531) 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, 1522512 + ... + 1567075.

It is an arithmetic number, because the mean of its divisors is an integer number (6958524573).

Almost surely, 268842177534 is an apocalyptic number.

68842177534 is a deficient number, since it is larger than the sum of its proper divisors (42494215634).

68842177534 is a wasteful number, since it uses less digits than its factorization.

68842177534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090459.

The product of its digits is 9031680, while the sum is 55.

The spelling of 68842177534 in words is "sixty-eight billion, eight hundred forty-two million, one hundred seventy-seven thousand, five hundred thirty-four".

Divisors: 1 2 13 26 857 1714 11141 22282 3089587 6179174 40164631 80329262 2647776059 5295552118 34421088767 68842177534