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85175999 = 591499689
BaseRepresentation
bin1010001001110…
…10111010111111
312221021101111122
411010322322333
5133301112444
612241341155
72052661346
oct504727277
9187241448
1085175999
1144096a97
12246377bb
13148532cc
14b452b5d
1577274ee
hex513aebf

85175999 has 8 divisors (see below), whose sum is σ = 87210000. Its totient is φ = 83161792.

The previous prime is 85175989. The next prime is 85176041. The reversal of 85175999 is 99957158.

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-85175999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85175999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85175939) 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 7 ways as a sum of consecutive naturals, for example, 3947 + ... + 13635.

It is an arithmetic number, because the mean of its divisors is an integer number (10901250).

Almost surely, 285175999 is an apocalyptic number.

85175999 is a deficient number, since it is larger than the sum of its proper divisors (2034001).

85175999 is a wasteful number, since it uses less digits than its factorization.

85175999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9897.

The product of its digits is 1020600, while the sum is 53.

The square root of 85175999 is about 9229.0844074588. The cubic root of 85175999 is about 439.9862237422.

The spelling of 85175999 in words is "eighty-five million, one hundred seventy-five thousand, nine hundred ninety-nine".

Divisors: 1 59 149 8791 9689 571651 1443661 85175999