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72875087 is a prime number
BaseRepresentation
bin1000101011111…
…11110001001111
312002010102211022
410111333301033
5122124000322
611121544355
71543266545
oct425776117
9162112738
1072875087
113815514a
12204a50bb
131213736c
14996dd95
1565e7942
hex457fc4f

72875087 has 2 divisors, whose sum is σ = 72875088. Its totient is φ = 72875086.

The previous prime is 72875071. The next prime is 72875093. The reversal of 72875087 is 78057827.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72875087 - 24 = 72875071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72875027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36437543 + 36437544.

It is an arithmetic number, because the mean of its divisors is an integer number (36437544).

Almost surely, 272875087 is an apocalyptic number.

72875087 is a deficient number, since it is larger than the sum of its proper divisors (1).

72875087 is an equidigital number, since it uses as much as digits as its factorization.

72875087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 219520, while the sum is 44.

The square root of 72875087 is about 8536.6906351349. The cubic root of 72875087 is about 417.6954028121.

The spelling of 72875087 in words is "seventy-two million, eight hundred seventy-five thousand, eighty-seven".