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72712883 is a prime number
BaseRepresentation
bin1000101010110…
…00001010110011
312001211012022202
410111120022303
5122103303013
611114253415
71542022625
oct425301263
9161735282
1072712883
11380542a1
122042726b
13120ab599
14992ac15
1565b4858
hex45582b3

72712883 has 2 divisors, whose sum is σ = 72712884. Its totient is φ = 72712882.

The previous prime is 72712879. The next prime is 72712909. The reversal of 72712883 is 38821727.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72712883 - 22 = 72712879 is a prime.

It is a super-3 number, since 3×727128833 (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (72711883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36356441 + 36356442.

It is an arithmetic number, because the mean of its divisors is an integer number (36356442).

Almost surely, 272712883 is an apocalyptic number.

72712883 is a deficient number, since it is larger than the sum of its proper divisors (1).

72712883 is an equidigital number, since it uses as much as digits as its factorization.

72712883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 38.

The square root of 72712883 is about 8527.1849399435. The cubic root of 72712883 is about 417.3852730769.

The spelling of 72712883 in words is "seventy-two million, seven hundred twelve thousand, eight hundred eighty-three".