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72660982 = 2223162917
BaseRepresentation
bin1000101010010…
…11011111110110
312001201120010111
410111023133312
5122100122412
611113213234
71541415412
oct425133766
9161646114
1072660982
11380192a9
122040121a
1312090a84
149915d42
1565a42a7
hex454b7f6

72660982 has 8 divisors (see below), whose sum is σ = 109480896. Its totient is φ = 36167352.

The previous prime is 72660971. The next prime is 72660983. The reversal of 72660982 is 28906627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72660983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81013 + ... + 81904.

It is an arithmetic number, because the mean of its divisors is an integer number (13685112).

Almost surely, 272660982 is an apocalyptic number.

72660982 is a deficient number, since it is larger than the sum of its proper divisors (36819914).

72660982 is a wasteful number, since it uses less digits than its factorization.

72660982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163142.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 72660982 is about 8524.1411297561. The cubic root of 72660982 is about 417.2859423561.

The spelling of 72660982 in words is "seventy-two million, six hundred sixty thousand, nine hundred eighty-two".

Divisors: 1 2 223 446 162917 325834 36330491 72660982