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13297877 is a prime number
BaseRepresentation
bin110010101110…
…100011010101
3221000121020222
4302232203111
511401013002
61153004125
7221013215
oct62564325
927017228
1013297877
11756298a
124553645
1329a7988
141aa2245
15127a1a2
hexcae8d5

13297877 has 2 divisors, whose sum is σ = 13297878. Its totient is φ = 13297876.

The previous prime is 13297873. The next prime is 13297897. The reversal of 13297877 is 77879231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7873636 + 5424241 = 2806^2 + 2329^2 .

It is an emirp because it is prime and its reverse (77879231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13297877 - 22 = 13297873 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13297871) 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, 6648938 + 6648939.

It is an arithmetic number, because the mean of its divisors is an integer number (6648939).

Almost surely, 213297877 is an apocalyptic number.

It is an amenable number.

13297877 is a deficient number, since it is larger than the sum of its proper divisors (1).

13297877 is an equidigital number, since it uses as much as digits as its factorization.

13297877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148176, while the sum is 44.

The square root of 13297877 is about 3646.6254263360. The cubic root of 13297877 is about 236.9158430511.

The spelling of 13297877 in words is "thirteen million, two hundred ninety-seven thousand, eight hundred seventy-seven".