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14885681 is a prime number
BaseRepresentation
bin111000110010…
…001100110001
31001000021022112
4320302030301
512302320211
61251015105
7240345326
oct70621461
931007275
1014885681
118447918
124b9a495
1331125c5
141d96b4d
15149088b
hexe32331

14885681 has 2 divisors, whose sum is σ = 14885682. Its totient is φ = 14885680.

The previous prime is 14885639. The next prime is 14885701. The reversal of 14885681 is 18658841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13542400 + 1343281 = 3680^2 + 1159^2 .

It is a cyclic number.

It is not a de Polignac number, because 14885681 - 26 = 14885617 is a prime.

It is a super-2 number, since 2×148856812 = 443166997667522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (14885881) 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, 7442840 + 7442841.

It is an arithmetic number, because the mean of its divisors is an integer number (7442841).

Almost surely, 214885681 is an apocalyptic number.

It is an amenable number.

14885681 is a deficient number, since it is larger than the sum of its proper divisors (1).

14885681 is an equidigital number, since it uses as much as digits as its factorization.

14885681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61440, while the sum is 41.

The square root of 14885681 is about 3858.1965994490. The cubic root of 14885681 is about 245.9930870334.

The spelling of 14885681 in words is "fourteen million, eight hundred eighty-five thousand, six hundred eighty-one".