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85212954 = 2329474999
BaseRepresentation
bin1010001010000…
…11111100011010
312221100021012100
411011003330122
5133303303304
612242224230
72053204161
oct505037432
9187307170
1085212954
1144111832
1224655076
1314867088
14b4623d8
157733439
hex5143f1a

85212954 has 24 divisors (see below), whose sum is σ = 184860000. Its totient is φ = 28368648.

The previous prime is 85212947. The next prime is 85212989. The reversal of 85212954 is 45921258.

It is a super-2 number, since 2×852129542 = 14522495058812232, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14547 + ... + 19545.

It is an arithmetic number, because the mean of its divisors is an integer number (7702500).

Almost surely, 285212954 is an apocalyptic number.

85212954 is an abundant number, since it is smaller than the sum of its proper divisors (99647046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85212954 is a wasteful number, since it uses less digits than its factorization.

85212954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5954 (or 5951 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 85212954 is about 9231.0862849396. The cubic root of 85212954 is about 440.0498462812.

The spelling of 85212954 in words is "eighty-five million, two hundred twelve thousand, nine hundred fifty-four".

Divisors: 1 2 3 6 9 18 947 1894 2841 4999 5682 8523 9998 14997 17046 29994 44991 89982 4734053 9468106 14202159 28404318 42606477 85212954