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82491360 = 2535724551
BaseRepresentation
bin1001110101010…
…11011111100000
312202012222212120
410322223133200
5132104210420
612104024240
72021110410
oct472533740
9182188776
1082491360
1142622a86
1223762080
1314123373
14ad54640
157396d40
hex4eab7e0

82491360 has 96 divisors (see below), whose sum is σ = 296980992. Its totient is φ = 18854400.

The previous prime is 82491359. The next prime is 82491391. The reversal of 82491360 is 6319428.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8916 + ... + 15635.

It is an arithmetic number, because the mean of its divisors is an integer number (3093552).

Almost surely, 282491360 is an apocalyptic number.

82491360 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

82491360 is an abundant number, since it is smaller than the sum of its proper divisors (214489632).

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

82491360 is a wasteful number, since it uses less digits than its factorization.

82491360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24576 (or 24568 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 82491360 is about 9082.4754334928. The cubic root of 82491360 is about 435.3141870751.

The spelling of 82491360 in words is "eighty-two million, four hundred ninety-one thousand, three hundred sixty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 70 80 84 96 105 112 120 140 160 168 210 224 240 280 336 420 480 560 672 840 1120 1680 3360 24551 49102 73653 98204 122755 147306 171857 196408 245510 294612 343714 368265 392816 491020 515571 589224 687428 736530 785632 859285 982040 1031142 1178448 1374856 1473060 1718570 1964080 2062284 2356896 2577855 2749712 2946120 3437140 3928160 4124568 5155710 5499424 5892240 6874280 8249136 10311420 11784480 13748560 16498272 20622840 27497120 41245680 82491360