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81086956114 = 279513208583
BaseRepresentation
bin100101110000100101…
…0001100001001010010
321202022002102011110211
41023201022030021102
52312031230043424
6101130102514334
75600260516603
oct1134112141122
9252262364424
1081086956114
113143052231a
121386ba359aa
137853399608
143cd327ddaa
152198b29b94
hex12e128c252

81086956114 has 8 divisors (see below), whose sum is σ = 123170060160. Its totient is φ = 40030269396.

The previous prime is 81086956109. The next prime is 81086956129. The reversal of 81086956114 is 41165968018.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256604134 + ... + 256604449.

It is an arithmetic number, because the mean of its divisors is an integer number (15396257520).

Almost surely, 281086956114 is an apocalyptic number.

81086956114 is a deficient number, since it is larger than the sum of its proper divisors (42083104046).

81086956114 is a wasteful number, since it uses less digits than its factorization.

81086956114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513208664.

The product of its (nonzero) digits is 414720, while the sum is 49.

The spelling of 81086956114 in words is "eighty-one billion, eighty-six million, nine hundred fifty-six thousand, one hundred fourteen".

Divisors: 1 2 79 158 513208583 1026417166 40543478057 81086956114