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82988136 = 233271114969
BaseRepresentation
bin1001111001001…
…00110001101000
312210011020022200
410330210301220
5132221110021
612122420200
72025246630
oct474446150
9183136280
1082988136
1142932240
1223961660
131426850a
14b0436c0
157444126
hex4f24c68

82988136 has 96 divisors (see below), whose sum is σ = 280238400. Its totient is φ = 21553920.

The previous prime is 82988123. The next prime is 82988167. The reversal of 82988136 is 63188928.

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

It is a junction number, because it is equal to n+sod(n) for n = 82988091 and 82988100.

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, 1941 + ... + 13028.

It is an arithmetic number, because the mean of its divisors is an integer number (2919150).

Almost surely, 282988136 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 82988136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140119200).

82988136 is an abundant number, since it is smaller than the sum of its proper divisors (197250264).

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

82988136 is a wasteful number, since it uses less digits than its factorization.

82988136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14999 (or 14992 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 82988136 is about 9109.7824342846. The cubic root of 82988136 is about 436.1862823774.

The spelling of 82988136 in words is "eighty-two million, nine hundred eighty-eight thousand, one hundred thirty-six".

Divisors: 1 2 3 4 6 7 8 9 11 12 14 18 21 22 24 28 33 36 42 44 56 63 66 72 77 84 88 99 126 132 154 168 198 231 252 264 308 396 462 504 616 693 792 924 1386 1848 2772 5544 14969 29938 44907 59876 89814 104783 119752 134721 164659 179628 209566 269442 314349 329318 359256 419132 493977 538884 628698 658636 838264 943047 987954 1077768 1152613 1257396 1317272 1481931 1886094 1975908 2305226 2514792 2963862 3457839 3772188 3951816 4610452 5927724 6915678 7544376 9220904 10373517 11855448 13831356 20747034 27662712 41494068 82988136