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85913632 = 257834621
BaseRepresentation
bin1010001111011…
…11000000100000
312222122212100101
411013233000200
5133443214012
612305232144
72062153030
oct507570040
9188585311
1085913632
1144550202
1224932654
1314a50c8c
14b5a58c0
157820d57
hex51ef020

85913632 has 48 divisors (see below), whose sum is σ = 195676992. Its totient is φ = 36368640.

The previous prime is 85913591. The next prime is 85913647. The reversal of 85913632 is 23631958.

It is a junction number, because it is equal to n+sod(n) for n = 85913591 and 85913600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16282 + ... + 20902.

It is an arithmetic number, because the mean of its divisors is an integer number (4076604).

Almost surely, 285913632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85913632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97838496).

85913632 is an abundant number, since it is smaller than the sum of its proper divisors (109763360).

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

85913632 is a wasteful number, since it uses less digits than its factorization.

85913632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4721 (or 4713 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 85913632 is about 9268.9606752861. The cubic root of 85913632 is about 441.2526836582.

The spelling of 85913632 in words is "eighty-five million, nine hundred thirteen thousand, six hundred thirty-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 83 112 166 224 332 581 664 1162 1328 2324 2656 4621 4648 9242 9296 18484 18592 32347 36968 64694 73936 129388 147872 258776 383543 517552 767086 1035104 1534172 2684801 3068344 5369602 6136688 10739204 12273376 21478408 42956816 85913632