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85074573 = 328358191
BaseRepresentation
bin1010001001000…
…10001010001101
312221002020101010
411010202022031
5133234341243
612235235433
72052056553
oct504421215
9187066333
1085074573
1144027871
12245a8b79
13148190ac
14b427bd3
157707433
hex512228d

85074573 has 4 divisors (see below), whose sum is σ = 113432768. Its totient is φ = 56716380.

The previous prime is 85074557. The next prime is 85074599. The reversal of 85074573 is 37547058.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 85074573 - 24 = 85074557 is a prime.

It is a super-2 number, since 2×850745732 = 14475365942264658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85074553) 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, 14179093 + ... + 14179098.

It is an arithmetic number, because the mean of its divisors is an integer number (28358192).

Almost surely, 285074573 is an apocalyptic number.

It is an amenable number.

85074573 is a deficient number, since it is larger than the sum of its proper divisors (28358195).

85074573 is a wasteful number, since it uses less digits than its factorization.

85074573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28358194.

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 85074573 is about 9223.5878593961. The cubic root of 85074573 is about 439.8115118975.

The spelling of 85074573 in words is "eighty-five million, seventy-four thousand, five hundred seventy-three".

Divisors: 1 3 28358191 85074573