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85048557 = 3117136299
BaseRepresentation
bin1010001000110…
…11110011101101
312221000220200120
411010123303231
5133233023212
612234515153
72051620656
oct504336355
9187026616
1085048557
114400a270
1224595ab9
131480a2b9
14b41c52d
1576ee88c
hex511bced

85048557 has 16 divisors (see below), whose sum is σ = 125452800. Its totient is φ = 50817200.

The previous prime is 85048553. The next prime is 85048573. The reversal of 85048557 is 75584058.

It is a cyclic number.

It is not a de Polignac number, because 85048557 - 22 = 85048553 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85048553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15807 + ... + 20492.

It is an arithmetic number, because the mean of its divisors is an integer number (7840800).

Almost surely, 285048557 is an apocalyptic number.

It is an amenable number.

85048557 is a deficient number, since it is larger than the sum of its proper divisors (40404243).

85048557 is a wasteful number, since it uses less digits than its factorization.

85048557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36384.

The product of its (nonzero) digits is 224000, while the sum is 42.

The square root of 85048557 is about 9222.1774543759. The cubic root of 85048557 is about 439.7666755363.

The spelling of 85048557 in words is "eighty-five million, forty-eight thousand, five hundred fifty-seven".

Divisors: 1 3 11 33 71 213 781 2343 36299 108897 399289 1197867 2577229 7731687 28349519 85048557