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89331620 = 22574179197
BaseRepresentation
bin1010101001100…
…01011110100100
320020002111221112
411110301132210
5140332102440
612510404152
72133210020
oct524613644
9206074845
1089331620
1146475194
1225b00658
1315679961
14bc15380
157c98965
hex55317a4

89331620 has 96 divisors (see below), whose sum is σ = 223534080. Its totient is φ = 29352960.

The previous prime is 89331611. The next prime is 89331637. The reversal of 89331620 is 2613398.

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 31 ways as a sum of consecutive naturals, for example, 453362 + ... + 453558.

It is an arithmetic number, because the mean of its divisors is an integer number (2328480).

Almost surely, 289331620 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 89331620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111767040).

89331620 is an abundant number, since it is smaller than the sum of its proper divisors (134202460).

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

89331620 is a wasteful number, since it uses less digits than its factorization.

89331620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 89331620 is about 9451.5406151590. The cubic root of 89331620 is about 447.0283536142.

The spelling of 89331620 in words is "eighty-nine million, three hundred thirty-one thousand, six hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 41 70 79 82 140 158 164 197 205 287 316 394 395 410 553 574 788 790 820 985 1106 1148 1379 1435 1580 1970 2212 2758 2765 2870 3239 3940 5516 5530 5740 6478 6895 8077 11060 12956 13790 15563 16154 16195 22673 27580 31126 32308 32390 40385 45346 56539 62252 64780 77815 80770 90692 108941 113078 113365 155630 161540 217882 226156 226730 282695 311260 435764 453460 544705 565390 638083 1089410 1130780 1276166 2178820 2552332 3190415 4466581 6380830 8933162 12761660 17866324 22332905 44665810 89331620