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72575985 = 354838399
BaseRepresentation
bin1000101001101…
…10101111110001
312001120020112110
410110312233301
5122034412420
611111315533
71540612536
oct424665761
9161506473
1072575985
1137a70459
122037bba9
1312061191
1498d2d8d
156588ee0
hex4536bf1

72575985 has 8 divisors (see below), whose sum is σ = 116121600. Its totient is φ = 38707184.

The previous prime is 72575977. The next prime is 72575999. The reversal of 72575985 is 58957527.

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 72575985 - 23 = 72575977 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2419185 + ... + 2419214.

It is an arithmetic number, because the mean of its divisors is an integer number (14515200).

Almost surely, 272575985 is an apocalyptic number.

It is an amenable number.

72575985 is a deficient number, since it is larger than the sum of its proper divisors (43545615).

72575985 is a wasteful number, since it uses less digits than its factorization.

72575985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4838407.

The product of its digits is 882000, while the sum is 48.

The square root of 72575985 is about 8519.1540072944. The cubic root of 72575985 is about 417.1231686494.

The spelling of 72575985 in words is "seventy-two million, five hundred seventy-five thousand, nine hundred eighty-five".

Divisors: 1 3 5 15 4838399 14515197 24191995 72575985