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BaseRepresentation
bin110101001111…
…100010000001
3222021002202011
4311033202001
512033112444
61215052521
7226430455
oct65174201
928232664
1013957249
117973319
124811141
132b78b37
141bd4665
15135a734
hexd4f881

13957249 has 2 divisors, whose sum is σ = 13957250. Its totient is φ = 13957248.

The previous prime is 13957219. The next prime is 13957271. The reversal of 13957249 is 94275931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9828225 + 4129024 = 3135^2 + 2032^2 .

It is a cyclic number.

It is not a de Polignac number, because 13957249 - 29 = 13956737 is a prime.

It is not a weakly prime, because it can be changed into another prime (13957219) 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, 6978624 + 6978625.

It is an arithmetic number, because the mean of its divisors is an integer number (6978625).

Almost surely, 213957249 is an apocalyptic number.

It is an amenable number.

13957249 is a deficient number, since it is larger than the sum of its proper divisors (1).

13957249 is an equidigital number, since it uses as much as digits as its factorization.

13957249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 40.

The square root of 13957249 is about 3735.9401761806. The cubic root of 13957249 is about 240.7686524923.

The spelling of 13957249 in words is "thirteen million, nine hundred fifty-seven thousand, two hundred forty-nine".