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6808568512258 = 2169714071142567
BaseRepresentation
bin110001100010011111001…
…0011101011111100000010
3220002220002211211210222201
41203010332103223330002
51343022422014343013
622251451352223414
71301621450316412
oct143047623537402
926086084753881
106808568512258
112195552476237
1291b66799ab6a
133a5078571c66
1419777212a642
15bc18e6233dd
hex6313e4ebf02

6808568512258 has 16 divisors (see below), whose sum is σ = 10219668868224. Its totient is φ = 3402012539520.

The previous prime is 6808568512253. The next prime is 6808568512297. The reversal of 6808568512258 is 8522158658086.

It is a super-2 number, since 2×68085685122582 (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6808568512258.

It is not an unprimeable number, because it can be changed into a prime (6808568512253) 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, 47685691 + ... + 47828257.

It is an arithmetic number, because the mean of its divisors is an integer number (638729304264).

Almost surely, 26808568512258 is an apocalyptic number.

6808568512258 is a deficient number, since it is larger than the sum of its proper divisors (3411100355966).

6808568512258 is a wasteful number, since it uses less digits than its factorization.

6808568512258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158337.

The product of its (nonzero) digits is 73728000, while the sum is 64.

The spelling of 6808568512258 in words is "six trillion, eight hundred eight billion, five hundred sixty-eight million, five hundred twelve thousand, two hundred fifty-eight".

Divisors: 1 2 1697 3394 14071 28142 142567 285134 23878487 47756974 241936199 483872398 2006060257 4012120514 3404284256129 6808568512258