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82906272 = 253219109139
BaseRepresentation
bin1001111000100…
…00110010100000
312210000002000200
410330100302200
5132211000042
612120545200
72024456151
oct474206240
9183002020
1082906272
1142886789
1223922200
131423a187
14b021928
157429c4c
hex4f10ca0

82906272 has 144 divisors (see below), whose sum is σ = 252252000. Its totient is φ = 25754112.

The previous prime is 82906249. The next prime is 82906301. The reversal of 82906272 is 27260928.

82906272 is a `hidden beast` number, since 8 + 29 + 0 + 627 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 596379 + ... + 596517.

It is an arithmetic number, because the mean of its divisors is an integer number (1751750).

Almost surely, 282906272 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 82906272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126126000).

82906272 is an abundant number, since it is smaller than the sum of its proper divisors (169345728).

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

82906272 is a wasteful number, since it uses less digits than its factorization.

82906272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 82906272 is about 9105.2881338264. The cubic root of 82906272 is about 436.0428092522.

The spelling of 82906272 in words is "eighty-two million, nine hundred six thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 32 36 38 48 57 72 76 96 109 114 139 144 152 171 218 228 278 288 304 327 342 417 436 456 556 608 654 684 834 872 912 981 1112 1251 1308 1368 1668 1744 1824 1962 2071 2224 2502 2616 2641 2736 3336 3488 3924 4142 4448 5004 5232 5282 5472 6213 6672 7848 7923 8284 10008 10464 10564 12426 13344 15151 15696 15846 16568 18639 20016 21128 23769 24852 30302 31392 31692 33136 37278 40032 42256 45453 47538 49704 60604 63384 66272 74556 84512 90906 95076 99408 121208 126768 136359 149112 181812 190152 198816 242416 253536 272718 287869 298224 363624 380304 484832 545436 575738 596448 727248 760608 863607 1090872 1151476 1454496 1727214 2181744 2302952 2590821 3454428 4363488 4605904 5181642 6908856 9211808 10363284 13817712 20726568 27635424 41453136 82906272