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86331101785 = 5171277997323
BaseRepresentation
bin101000001100110111…
…1000001001001011001
322020211120012100221021
41100121233001021121
52403301230224120
6103354315042441
76144236154205
oct1203157011131
9266746170837
1086331101785
1133681724605
1214894140421
1381aa99aca6
14426d935b05
1523a420aaaa
hex1419bc1259

86331101785 has 16 divisors (see below), whose sum is σ = 110555006976. Its totient is φ = 64490404608.

The previous prime is 86331101741. The next prime is 86331101797. The reversal of 86331101785 is 58710113368.

It is a cyclic number.

It is not a de Polignac number, because 86331101785 - 219 = 86330577497 is a prime.

It is a Duffinian 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, 3987867 + ... + 4009456.

It is an arithmetic number, because the mean of its divisors is an integer number (6909687936).

Almost surely, 286331101785 is an apocalyptic number.

86331101785 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

86331101785 is a deficient number, since it is larger than the sum of its proper divisors (24223905191).

86331101785 is a wasteful number, since it uses less digits than its factorization.

86331101785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7997472.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 86331101785 in words is "eighty-six billion, three hundred thirty-one million, one hundred one thousand, seven hundred eighty-five".

Divisors: 1 5 17 85 127 635 2159 10795 7997323 39986615 135954491 679772455 1015660021 5078300105 17266220357 86331101785