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85006807 = 563150989
BaseRepresentation
bin1010001000100…
…01100111010111
312220221210102021
411010101213113
5133230204212
612233554011
72051355154
oct504214727
9186853367
1085006807
1143a90966
1224575907
13147c42b2
14b40b22b
1576e2307
hex51119d7

85006807 has 4 divisors (see below), whose sum is σ = 85158360. Its totient is φ = 84855256.

The previous prime is 85006799. The next prime is 85006813. The reversal of 85006807 is 70860058.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85006807 - 23 = 85006799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85006877) 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 3 ways as a sum of consecutive naturals, for example, 74932 + ... + 76057.

It is an arithmetic number, because the mean of its divisors is an integer number (21289590).

Almost surely, 285006807 is an apocalyptic number.

85006807 is a deficient number, since it is larger than the sum of its proper divisors (151553).

85006807 is a wasteful number, since it uses less digits than its factorization.

85006807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151552.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 85006807 is about 9219.9136113089. The cubic root of 85006807 is about 439.6947038514.

The spelling of 85006807 in words is "eighty-five million, six thousand, eight hundred seven".

Divisors: 1 563 150989 85006807