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86072678 = 2311388269
BaseRepresentation
bin1010010000101…
…01110101100110
312222221221111222
411020111311212
5134013311203
612312500342
72063414516
oct510256546
9188857458
1086072678
114464974a
12249aa6b2
1314aa84a3
14b607846
157853038
hex5215d66

86072678 has 8 divisors (see below), whose sum is σ = 133273920. Its totient is φ = 41648040.

The previous prime is 86072677. The next prime is 86072711. The reversal of 86072678 is 87627068.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86072677) by changing a digit.

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, 694073 + ... + 694196.

It is an arithmetic number, because the mean of its divisors is an integer number (16659240).

Almost surely, 286072678 is an apocalyptic number.

86072678 is a deficient number, since it is larger than the sum of its proper divisors (47201242).

86072678 is a wasteful number, since it uses less digits than its factorization.

86072678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388302.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 86072678 is about 9277.5362031091. The cubic root of 86072678 is about 441.5248027272.

The spelling of 86072678 in words is "eighty-six million, seventy-two thousand, six hundred seventy-eight".

Divisors: 1 2 31 62 1388269 2776538 43036339 86072678