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69880147 is a prime number
BaseRepresentation
bin1000010101001…
…00100101010011
311212111021112121
410022210211103
5120342131042
610533435111
71505654131
oct412444523
9155437477
1069880147
1136499a97
121b49ba97
13116290cc
1493d0751
156205367
hex42a4953

69880147 has 2 divisors, whose sum is σ = 69880148. Its totient is φ = 69880146.

The previous prime is 69880133. The next prime is 69880171. The reversal of 69880147 is 74108896.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 69880147 - 219 = 69355859 is a prime.

It is not a weakly prime, because it can be changed into another prime (69880747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34940073 + 34940074.

It is an arithmetic number, because the mean of its divisors is an integer number (34940074).

Almost surely, 269880147 is an apocalyptic number.

69880147 is a deficient number, since it is larger than the sum of its proper divisors (1).

69880147 is an equidigital number, since it uses as much as digits as its factorization.

69880147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 69880147 is about 8359.4346100678. The cubic root of 69880147 is about 411.8931820828.

The spelling of 69880147 in words is "sixty-nine million, eight hundred eighty thousand, one hundred forty-seven".