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72000371 is a prime number
BaseRepresentation
bin1000100101010…
…10001101110011
312000110222221102
410102222031303
5121413002441
611051115015
71532664422
oct422521563
9160428842
1072000371
1137707a43
1220142a6b
1311bbc191
1497c32b9
1564c369b
hex44aa373

72000371 has 2 divisors, whose sum is σ = 72000372. Its totient is φ = 72000370.

The previous prime is 72000353. The next prime is 72000421. The reversal of 72000371 is 17300027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72000371 - 226 = 4891507 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72000571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36000185 + 36000186.

It is an arithmetic number, because the mean of its divisors is an integer number (36000186).

Almost surely, 272000371 is an apocalyptic number.

72000371 is a deficient number, since it is larger than the sum of its proper divisors (1).

72000371 is an equidigital number, since it uses as much as digits as its factorization.

72000371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294, while the sum is 20.

The square root of 72000371 is about 8485.3032355951. The cubic root of 72000371 is about 416.0174791565.

Adding to 72000371 its reverse (17300027), we get a palindrome (89300398).

The spelling of 72000371 in words is "seventy-two million, three hundred seventy-one", and thus it is an aban number.