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85934428 = 22131163997
BaseRepresentation
bin1010001111101…
…00000101011100
312222200220212121
411013310011130
5133444400203
612305512324
72062300456
oct507640534
9188626777
1085934428
1144564898
12249426a4
1314a5a598
14b5ad2d6
1578270bd
hex51f415c

85934428 has 12 divisors (see below), whose sum is σ = 151534152. Its totient is φ = 42638960.

The previous prime is 85934419. The next prime is 85934447. The reversal of 85934428 is 82443958.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 81475 + ... + 82522.

It is an arithmetic number, because the mean of its divisors is an integer number (12627846).

Almost surely, 285934428 is an apocalyptic number.

It is an amenable number.

85934428 is a deficient number, since it is larger than the sum of its proper divisors (65599724).

85934428 is a wasteful number, since it uses less digits than its factorization.

85934428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164132 (or 164130 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 85934428 is about 9270.0824160306. The cubic root of 85934428 is about 441.2882835597.

The spelling of 85934428 in words is "eighty-five million, nine hundred thirty-four thousand, four hundred twenty-eight".

Divisors: 1 2 4 131 262 524 163997 327994 655988 21483607 42967214 85934428