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85524087 = 31114391801
BaseRepresentation
bin1010001100011…
…11111001110111
312221221001222210
411012033321313
5133343232322
612253024503
72055641235
oct506177167
9187831883
1085524087
1144304570
1224785133
131494588c
14b503955
15779570c
hex518fe77

85524087 has 16 divisors (see below), whose sum is σ = 124554240. Its totient is φ = 51768000.

The previous prime is 85524079. The next prime is 85524091. The reversal of 85524087 is 78042558.

It is not a de Polignac number, because 85524087 - 23 = 85524079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85524007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46587 + ... + 48387.

It is an arithmetic number, because the mean of its divisors is an integer number (7784640).

Almost surely, 285524087 is an apocalyptic number.

85524087 is a deficient number, since it is larger than the sum of its proper divisors (39030153).

85524087 is a wasteful number, since it uses less digits than its factorization.

85524087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3254.

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 85524087 is about 9247.9233885235. The cubic root of 85524087 is about 440.5847717209.

It can be divided in two parts, 855 and 24087, that added together give a palindrome (24942).

The spelling of 85524087 in words is "eighty-five million, five hundred twenty-four thousand, eighty-seven".

Divisors: 1 3 11 33 1439 1801 4317 5403 15829 19811 47487 59433 2591639 7774917 28508029 85524087