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72516133 = 599712671
BaseRepresentation
bin1000101001010…
…00001000100101
312001110012102201
410110220020211
5122031004013
611110134501
71540243204
oct424501045
9161405381
1072516133
1137a2a498
1220351431
131203cb71
1498b923b
1565763dd
hex4528225

72516133 has 8 divisors (see below), whose sum is σ = 74511360. Its totient is φ = 70546560.

The previous prime is 72516131. The next prime is 72516149. The reversal of 72516133 is 33161527.

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

It is a cyclic number.

It is not a de Polignac number, because 72516133 - 21 = 72516131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72516131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613 + ... + 12058.

It is an arithmetic number, because the mean of its divisors is an integer number (9313920).

Almost surely, 272516133 is an apocalyptic number.

It is an amenable number.

72516133 is a deficient number, since it is larger than the sum of its proper divisors (1995227).

72516133 is a wasteful number, since it uses less digits than its factorization.

72516133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12827.

The product of its digits is 3780, while the sum is 28.

The square root of 72516133 is about 8515.6404926465. The cubic root of 72516133 is about 417.0084726659.

The spelling of 72516133 in words is "seventy-two million, five hundred sixteen thousand, one hundred thirty-three".

Divisors: 1 59 97 5723 12671 747589 1229087 72516133