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86072438 = 272759197
BaseRepresentation
bin1010010000101…
…01110001110110
312222221221012002
411020111301312
5134013304223
612312455302
72063414024
oct510256166
9188857162
1086072438
1144649551
12249aa532
1314aa834a
14b607714
157852e28
hex5215c76

86072438 has 8 divisors (see below), whose sum is σ = 129288432. Its totient is φ = 42976296.

The previous prime is 86072429. The next prime is 86072443. The reversal of 86072438 is 83427068.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28145 + ... + 31052.

It is an arithmetic number, because the mean of its divisors is an integer number (16161054).

Almost surely, 286072438 is an apocalyptic number.

86072438 is a deficient number, since it is larger than the sum of its proper divisors (43215994).

86072438 is a wasteful number, since it uses less digits than its factorization.

86072438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59926.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 86072438 is about 9277.5232686316. The cubic root of 86072438 is about 441.5243923529.

The spelling of 86072438 in words is "eighty-six million, seventy-two thousand, four hundred thirty-eight".

Divisors: 1 2 727 1454 59197 118394 43036219 86072438