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85323547 = 1921121283
BaseRepresentation
bin1010001010111…
…10111100011011
312221112212220101
411011132330123
5133320323142
612244440231
72054144461
oct505367433
9187485811
1085323547
1144187931
12246a9077
13148a550a
14b490831
1577560b7
hex515ef1b

85323547 has 8 divisors (see below), whose sum is σ = 90244160. Its totient is φ = 80445960.

The previous prime is 85323533. The next prime is 85323551. The reversal of 85323547 is 74532358.

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 85323547 - 211 = 85321499 is a prime.

It is a super-2 number, since 2×853235472 = 14560215345322418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85323047) 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, 6633 + ... + 14650.

It is an arithmetic number, because the mean of its divisors is an integer number (11280520).

Almost surely, 285323547 is an apocalyptic number.

85323547 is a deficient number, since it is larger than the sum of its proper divisors (4920613).

85323547 is a wasteful number, since it uses less digits than its factorization.

85323547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21513.

The product of its digits is 100800, while the sum is 37.

The square root of 85323547 is about 9237.0745910164. The cubic root of 85323547 is about 440.2401357922.

The spelling of 85323547 in words is "eighty-five million, three hundred twenty-three thousand, five hundred forty-seven".

Divisors: 1 19 211 4009 21283 404377 4490713 85323547