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84081875 = 54294639
BaseRepresentation
bin1010000001011…
…11110011010011
312212012210122112
411000233303103
5133011110000
612202055535
72040453443
oct500576323
9185183575
1084081875
1143509a59
12241aa5ab
131455c2b7
14b24a123
1575ad235
hex502fcd3

84081875 has 20 divisors (see below), whose sum is σ = 108715200. Its totient is φ = 64932000.

The previous prime is 84081863. The next prime is 84081883. The reversal of 84081875 is 57818048.

It is not a de Polignac number, because 84081875 - 212 = 84077779 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15806 + ... + 20444.

It is an arithmetic number, because the mean of its divisors is an integer number (5435760).

Almost surely, 284081875 is an apocalyptic number.

84081875 is a deficient number, since it is larger than the sum of its proper divisors (24633325).

84081875 is an equidigital number, since it uses as much as digits as its factorization.

84081875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4688 (or 4673 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 84081875 is about 9169.6169494696. The cubic root of 84081875 is about 438.0941587078.

The spelling of 84081875 in words is "eighty-four million, eighty-one thousand, eight hundred seventy-five".

Divisors: 1 5 25 29 125 145 625 725 3625 4639 18125 23195 115975 134531 579875 672655 2899375 3363275 16816375 84081875