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85080071 = 523162677
BaseRepresentation
bin1010001001000…
…11100000000111
312221002111220202
411010203200013
5133240030241
612235321115
72052111566
oct504434007
9187074822
1085080071
1144030a0a
12245b019b
131481b74b
14b429bdd
157708d9b
hex5123807

85080071 has 4 divisors (see below), whose sum is σ = 85243272. Its totient is φ = 84916872.

The previous prime is 85080067. The next prime is 85080097. The reversal of 85080071 is 17008058.

It is a happy number.

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 85080071 - 22 = 85080067 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 (85080001) 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, 80816 + ... + 81861.

It is an arithmetic number, because the mean of its divisors is an integer number (21310818).

Almost surely, 285080071 is an apocalyptic number.

85080071 is a deficient number, since it is larger than the sum of its proper divisors (163201).

85080071 is a wasteful number, since it uses less digits than its factorization.

85080071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163200.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 85080071 is about 9223.8858947843. The cubic root of 85080071 is about 439.8209860624.

The spelling of 85080071 in words is "eighty-five million, eighty thousand, seventy-one".

Divisors: 1 523 162677 85080071