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102130069 is a prime number
BaseRepresentation
bin1100001011001…
…10000110010101
321010011202010011
412011212012111
5202121130234
614045000221
72350043206
oct605460625
9233152104
10102130069
1152716918
122a253071
131820b1c2
14d7c75ad
158e75b64
hex6166195

102130069 has 2 divisors, whose sum is σ = 102130070. Its totient is φ = 102130068.

The previous prime is 102130037. The next prime is 102130087. The reversal of 102130069 is 960031201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102111025 + 19044 = 10105^2 + 138^2 .

It is a cyclic number.

It is not a de Polignac number, because 102130069 - 25 = 102130037 is a prime.

It is a super-2 number, since 2×1021300692 = 20861101987889522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102130669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51065034 + 51065035.

It is an arithmetic number, because the mean of its divisors is an integer number (51065035).

Almost surely, 2102130069 is an apocalyptic number.

It is an amenable number.

102130069 is a deficient number, since it is larger than the sum of its proper divisors (1).

102130069 is an equidigital number, since it uses as much as digits as its factorization.

102130069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 102130069 is about 10105.9422618576. The cubic root of 102130069 is about 467.4313914588.

The spelling of 102130069 in words is "one hundred two million, one hundred thirty thousand, sixty-nine".