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85921703 = 712274529
BaseRepresentation
bin1010001111100…
…00111110100111
312222200021102022
411013300332213
5133443443303
612305333355
72062215410
oct507607647
9188607368
1085921703
114455627a
122493725b
1314a5485a
14b5a8807
157823438
hex51f0fa7

85921703 has 4 divisors (see below), whose sum is σ = 98196240. Its totient is φ = 73647168.

The previous prime is 85921699. The next prime is 85921741. The reversal of 85921703 is 30712958.

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

It is not a de Polignac number, because 85921703 - 22 = 85921699 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 (85921753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6137258 + ... + 6137271.

It is an arithmetic number, because the mean of its divisors is an integer number (24549060).

Almost surely, 285921703 is an apocalyptic number.

85921703 is a deficient number, since it is larger than the sum of its proper divisors (12274537).

85921703 is a wasteful number, since it uses less digits than its factorization.

85921703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12274536.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 85921703 is about 9269.3960428930. The cubic root of 85921703 is about 441.2665007860.

The spelling of 85921703 in words is "eighty-five million, nine hundred twenty-one thousand, seven hundred three".

Divisors: 1 7 12274529 85921703