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85075871 = 1714933587
BaseRepresentation
bin1010001001000…
…10011110011111
312221002022011012
411010202132133
5133234411441
612235245435
72052063416
oct504423637
9187068135
1085075871
1144028841
12245a987b
131481986a
14b42847d
1577079eb
hex512279f

85075871 has 8 divisors (see below), whose sum is σ = 90687600. Its totient is φ = 79531648.

The previous prime is 85075867. The next prime is 85075877. The reversal of 85075871 is 17857058.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85075871 - 22 = 85075867 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 (85075877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14261 + ... + 19326.

It is an arithmetic number, because the mean of its divisors is an integer number (11335950).

Almost surely, 285075871 is an apocalyptic number.

85075871 is a deficient number, since it is larger than the sum of its proper divisors (5611729).

85075871 is a wasteful number, since it uses less digits than its factorization.

85075871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33753.

The product of its (nonzero) digits is 78400, while the sum is 41.

The square root of 85075871 is about 9223.6582222023. The cubic root of 85075871 is about 439.8137486505.

The spelling of 85075871 in words is "eighty-five million, seventy-five thousand, eight hundred seventy-one".

Divisors: 1 17 149 2533 33587 570979 5004463 85075871