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72790704 = 2433724071
BaseRepresentation
bin1000101011010…
…11001010110000
312001222011002000
410111223022300
5122113300304
611120054000
71542465540
oct425531260
9161864060
1072790704
11380a7808
1220464300
1312107b2c
14994b320
1565cc939
hex456b2b0

72790704 has 80 divisors (see below), whose sum is σ = 238794240. Its totient is φ = 20796480.

The previous prime is 72790687. The next prime is 72790717. The reversal of 72790704 is 40709727.

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 15 ways as a sum of consecutive naturals, for example, 9012 + ... + 15059.

It is an arithmetic number, because the mean of its divisors is an integer number (2984928).

Almost surely, 272790704 is an apocalyptic number.

It is an amenable number.

72790704 is an abundant number, since it is smaller than the sum of its proper divisors (166003536).

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

72790704 is a wasteful number, since it uses less digits than its factorization.

72790704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24095 (or 24083 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 72790704 is about 8531.7468316869. The cubic root of 72790704 is about 417.5341222544.

The spelling of 72790704 in words is "seventy-two million, seven hundred ninety thousand, seven hundred four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 42 48 54 56 63 72 84 108 112 126 144 168 189 216 252 336 378 432 504 756 1008 1512 3024 24071 48142 72213 96284 144426 168497 192568 216639 288852 336994 385136 433278 505491 577704 649917 673988 866556 1010982 1155408 1299834 1347976 1516473 1733112 2021964 2599668 2695952 3032946 3466224 4043928 4549419 5199336 6065892 8087856 9098838 10398672 12131784 18197676 24263568 36395352 72790704