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85319275 = 5217319727
BaseRepresentation
bin1010001010111…
…01111001101011
312221112200001011
411011131321223
5133320204100
612244404351
72054126146
oct505357153
9187480034
1085319275
11441846a8
12246a66b7
13148a35a2
14b48d05d
157754bba
hex515de6b

85319275 has 12 divisors (see below), whose sum is σ = 106412832. Its totient is φ = 67857440.

The previous prime is 85319263. The next prime is 85319279. The reversal of 85319275 is 57291358.

It is not a de Polignac number, because 85319275 - 29 = 85318763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85319279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5539 + ... + 14188.

It is an arithmetic number, because the mean of its divisors is an integer number (8867736).

Almost surely, 285319275 is an apocalyptic number.

85319275 is a deficient number, since it is larger than the sum of its proper divisors (21093557).

85319275 is a wasteful number, since it uses less digits than its factorization.

85319275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19910 (or 19905 counting only the distinct ones).

The product of its digits is 75600, while the sum is 40.

The square root of 85319275 is about 9236.8433460788. The cubic root of 85319275 is about 440.2327883197.

The spelling of 85319275 in words is "eighty-five million, three hundred nineteen thousand, two hundred seventy-five".

Divisors: 1 5 25 173 865 4325 19727 98635 493175 3412771 17063855 85319275