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85944404 = 22713236111
BaseRepresentation
bin1010001111101…
…10100001010100
312222201102120002
411013312201110
5134000210104
612310030432
72062341530
oct507664124
9188642502
1085944404
1144571337
1224948418
1314a61ca0
14b5b2bc0
15782a01e
hex51f6854

85944404 has 24 divisors (see below), whose sum is σ = 185111808. Its totient is φ = 33999840.

The previous prime is 85944361. The next prime is 85944421. The reversal of 85944404 is 40444958.

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 7 ways as a sum of consecutive naturals, for example, 117692 + ... + 118419.

It is an arithmetic number, because the mean of its divisors is an integer number (7712992).

Almost surely, 285944404 is an apocalyptic number.

It is an amenable number.

85944404 is an abundant number, since it is smaller than the sum of its proper divisors (99167404).

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

85944404 is a wasteful number, since it uses less digits than its factorization.

85944404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236135 (or 236133 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 85944404 is about 9270.6204754590. The cubic root of 85944404 is about 441.3053590659.

The spelling of 85944404 in words is "eighty-five million, nine hundred forty-four thousand, four hundred four".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 236111 472222 944444 1652777 3069443 3305554 6138886 6611108 12277772 21486101 42972202 85944404