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168613381076 = 2276789879201
BaseRepresentation
bin1001110100001000100…
…1000000001111010100
3121010012221211020112212
42131002021000033110
510230310011143301
6205243201532552
715116253043250
oct2350211001724
9533187736485
10168613381076
1165565948918
1228818344158
1312b918b210a
148237849260
1545bcc4a4bb
hex27422403d4

168613381076 has 24 divisors (see below), whose sum is σ = 342260001216. Its totient is φ = 71184326400.

The previous prime is 168613381031. The next prime is 168613381081. The reversal of 168613381076 is 670183316861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44937725 + ... + 44941476.

It is an arithmetic number, because the mean of its divisors is an integer number (14260833384).

Almost surely, 2168613381076 is an apocalyptic number.

It is an amenable number.

168613381076 is an abundant number, since it is smaller than the sum of its proper divisors (173646620140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168613381076 is a wasteful number, since it uses less digits than its factorization.

168613381076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89879279 (or 89879277 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 168613381076 in words is "one hundred sixty-eight billion, six hundred thirteen million, three hundred eighty-one thousand, seventy-six".

Divisors: 1 2 4 7 14 28 67 134 268 469 938 1876 89879201 179758402 359516804 629154407 1258308814 2516617628 6021906467 12043812934 24087625868 42153345269 84306690538 168613381076