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85524790 = 25131738699
BaseRepresentation
bin1010001100100…
…00000100110110
312221221002221211
411012100010312
5133343243130
612253032034
72055643261
oct506200466
9187832854
1085524790
114430504a
122478561a
1314945cb0
14b503cd8
157795a2a
hex5190136

85524790 has 32 divisors (see below), whose sum is σ = 175543200. Its totient is φ = 29720064.

The previous prime is 85524781. The next prime is 85524793. The reversal of 85524790 is 9742558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85524793) 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, 17140 + ... + 21559.

It is an arithmetic number, because the mean of its divisors is an integer number (5485725).

Almost surely, 285524790 is an apocalyptic number.

85524790 is an abundant number, since it is smaller than the sum of its proper divisors (90018410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85524790 is a wasteful number, since it uses less digits than its factorization.

85524790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38736.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 85524790 is about 9247.9613969783. The cubic root of 85524790 is about 440.5859789062.

The spelling of 85524790 in words is "eighty-five million, five hundred twenty-four thousand, seven hundred ninety".

Divisors: 1 2 5 10 13 17 26 34 65 85 130 170 221 442 1105 2210 38699 77398 193495 386990 503087 657883 1006174 1315766 2515435 3289415 5030870 6578830 8552479 17104958 42762395 85524790