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86237928 = 23327397431
BaseRepresentation
bin1010010001111…
…10001011101000
320000021100012100
411020332023220
5134034103203
612320213400
72065003350
oct510761350
9200240170
1086237928
1144751917
1224a6a260
1314b3577a
14b64bb60
157886ea3
hex523e2e8

86237928 has 96 divisors (see below), whose sum is σ = 268220160. Its totient is φ = 24520320.

The previous prime is 86237927. The next prime is 86237929. The reversal of 86237928 is 82973268.

It is an interprime number because it is at equal distance from previous prime (86237927) and next prime (86237929).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (86237927) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 199873 + ... + 200303.

It is an arithmetic number, because the mean of its divisors is an integer number (2793960).

Almost surely, 286237928 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 86237928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134110080).

86237928 is an abundant number, since it is smaller than the sum of its proper divisors (181982232).

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

86237928 is a wasteful number, since it uses less digits than its factorization.

86237928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847 (or 840 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 86237928 is about 9286.4378531275. The cubic root of 86237928 is about 441.8071816505.

The spelling of 86237928 in words is "eighty-six million, two hundred thirty-seven thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 168 252 397 431 504 794 862 1191 1293 1588 1724 2382 2586 2779 3017 3176 3448 3573 3879 4764 5172 5558 6034 7146 7758 8337 9051 9528 10344 11116 12068 14292 15516 16674 18102 22232 24136 25011 27153 28584 31032 33348 36204 50022 54306 66696 72408 100044 108612 171107 200088 217224 342214 513321 684428 1026642 1197749 1368856 1539963 2053284 2395498 3079926 3593247 4106568 4790996 6159852 7186494 9581992 10779741 12319704 14372988 21559482 28745976 43118964 86237928