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87047094 = 23195314407
BaseRepresentation
bin1010011000000…
…11101110110110
320001210110011110
411030003232312
5134241001334
612345415450
72104613421
oct514035666
9201713143
1087047094
1145154852
122519a586
1315059b74
14b7bc9b8
157996ae9
hex5303bb6

87047094 has 32 divisors (see below), whose sum is σ = 186727680. Its totient is φ = 26968032.

The previous prime is 87047083. The next prime is 87047143. The reversal of 87047094 is 49074078.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent 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, 1162 + ... + 13245.

It is an arithmetic number, because the mean of its divisors is an integer number (5835240).

Almost surely, 287047094 is an apocalyptic number.

87047094 is an abundant number, since it is smaller than the sum of its proper divisors (99680586).

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

87047094 is a wasteful number, since it uses less digits than its factorization.

87047094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14484.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 87047094 is about 9329.9032149321. The cubic root of 87047094 is about 443.1847001445.

The spelling of 87047094 in words is "eighty-seven million, forty-seven thousand, ninety-four".

Divisors: 1 2 3 6 19 38 53 57 106 114 159 318 1007 2014 3021 6042 14407 28814 43221 86442 273733 547466 763571 821199 1527142 1642398 2290713 4581426 14507849 29015698 43523547 87047094