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85006775 = 527485753
BaseRepresentation
bin1010001000100…
…01100110110111
312220221210101002
411010101212313
5133230204100
612233553515
72051355110
oct504214667
9186853332
1085006775
1143a90937
122457589b
13147c4289
14b40b207
1576e22d5
hex51119b7

85006775 has 12 divisors (see below), whose sum is σ = 120466992. Its totient is φ = 58290240.

The previous prime is 85006771. The next prime is 85006793. The reversal of 85006775 is 57760058.

It is not a de Polignac number, because 85006775 - 22 = 85006771 is a prime.

It is a Duffinian number.

85006775 is a modest number, since divided by 6775 gives 850 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85006771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242702 + ... + 243051.

It is an arithmetic number, because the mean of its divisors is an integer number (10038916).

Almost surely, 285006775 is an apocalyptic number.

85006775 is a deficient number, since it is larger than the sum of its proper divisors (35460217).

85006775 is a wasteful number, since it uses less digits than its factorization.

85006775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485770 (or 485765 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 85006775 is about 9219.9118759346. The cubic root of 85006775 is about 439.6946486784.

The spelling of 85006775 in words is "eighty-five million, six thousand, seven hundred seventy-five".

Divisors: 1 5 7 25 35 175 485753 2428765 3400271 12143825 17001355 85006775