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85318087 = 1729173059
BaseRepresentation
bin1010001010111…
…01100111000111
312221112121102011
411011131213013
5133320134322
612244355051
72054122531
oct505354707
9187477364
1085318087
1144183818
12246a5a87
13148a2b9a
14b48c851
157754677
hex515d9c7

85318087 has 8 divisors (see below), whose sum is σ = 93452400. Its totient is φ = 77529984.

The previous prime is 85318081. The next prime is 85318091. The reversal of 85318087 is 78081358.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-85318087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85318081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86037 + ... + 87022.

It is an arithmetic number, because the mean of its divisors is an integer number (11681550).

Almost surely, 285318087 is an apocalyptic number.

85318087 is a deficient number, since it is larger than the sum of its proper divisors (8134313).

85318087 is a wasteful number, since it uses less digits than its factorization.

85318087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173105.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 85318087 is about 9236.7790381713. The cubic root of 85318087 is about 440.2307450183.

The spelling of 85318087 in words is "eighty-five million, three hundred eighteen thousand, eighty-seven".

Divisors: 1 17 29 493 173059 2942003 5018711 85318087