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85597793 = 192673539
BaseRepresentation
bin1010001101000…
…01111001100001
312222001211002122
411012201321201
5133403112133
612254354025
72056366151
oct506417141
9188054078
1085597793
1144354986
12247bb915
13149702a8
14b522761
1577ac498
hex51a1e61

85597793 has 12 divisors (see below), whose sum is σ = 91714320. Its totient is φ = 79859736.

The previous prime is 85597783. The next prime is 85597801. The reversal of 85597793 is 39779558.

It is a happy number.

It is not a de Polignac number, because 85597793 - 214 = 85581409 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85597723) 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, 22418 + ... + 25956.

It is an arithmetic number, because the mean of its divisors is an integer number (7642860).

Almost surely, 285597793 is an apocalyptic number.

It is an amenable number.

85597793 is a deficient number, since it is larger than the sum of its proper divisors (6116527).

85597793 is a wasteful number, since it uses less digits than its factorization.

85597793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3644 (or 3625 counting only the distinct ones).

The product of its digits is 2381400, while the sum is 53.

The square root of 85597793 is about 9251.9075330442. The cubic root of 85597793 is about 440.7113030019.

The spelling of 85597793 in words is "eighty-five million, five hundred ninety-seven thousand, seven hundred ninety-three".

Divisors: 1 19 67 361 1273 3539 24187 67241 237113 1277579 4505147 85597793