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72057000876 = 22376779126541
BaseRepresentation
bin100001100011011101…
…1101001001110101100
320212222202221220121020
41003012323221032230
52140033043012001
653034051334140
75130432254520
oct1030673511654
9225882856536
1072057000876
11286173312a3
1211b6b8b1350
136a4465b833
1436b7cabd80
151d1aed2736
hex10c6ee93ac

72057000876 has 48 divisors (see below), whose sum is σ = 192181866240. Its totient is φ = 20584514880.

The previous prime is 72057000859. The next prime is 72057000919. The reversal of 72057000876 is 67800075027.

72057000876 is a nontrivial binomial coefficient, being equal to C(379624, 2).

It is a super-2 number, since 2×720570008762 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506166 + ... + 632706.

It is an arithmetic number, because the mean of its divisors is an integer number (4003788880).

Almost surely, 272057000876 is an apocalyptic number.

72057000876 is the 379623-rd triangular number and also the 189812-nd hexagonal number.

It is an amenable number.

72057000876 is an abundant number, since it is smaller than the sum of its proper divisors (120124865364).

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

72057000876 is a wasteful number, since it uses less digits than its factorization.

72057000876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133334 (or 133332 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 42.

The spelling of 72057000876 in words is "seventy-two billion, fifty-seven million, eight hundred seventy-six", and thus it is an aban number.

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 6779 13558 20337 27116 40674 47453 81348 94906 126541 142359 189812 253082 284718 379623 506164 569436 759246 885787 1518492 1771574 2657361 3543148 5314722 10629444 857821439 1715642878 2573464317 3431285756 5146928634 6004750073 10293857268 12009500146 18014250219 24019000292 36028500438 72057000876