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13014581 is a prime number
BaseRepresentation
bin110001101001…
…011000110101
3220111012122112
4301221120311
511312431311
61142540405
7215423246
oct61513065
926435575
1013014581
11738a058
124437705
132908a48
141a2accd
15122128b
hexc69635

13014581 has 2 divisors, whose sum is σ = 13014582. Its totient is φ = 13014580.

The previous prime is 13014541. The next prime is 13014583. The reversal of 13014581 is 18541031.

13014581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12666481 + 348100 = 3559^2 + 590^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13014581 is a prime.

It is a super-2 number, since 2×130145812 = 338758637211122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 13014583, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13014583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6507290 + 6507291.

It is an arithmetic number, because the mean of its divisors is an integer number (6507291).

Almost surely, 213014581 is an apocalyptic number.

It is an amenable number.

13014581 is a deficient number, since it is larger than the sum of its proper divisors (1).

13014581 is an equidigital number, since it uses as much as digits as its factorization.

13014581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 13014581 is about 3607.5727296896. The cubic root of 13014581 is about 235.2213456976.

The spelling of 13014581 in words is "thirteen million, fourteen thousand, five hundred eighty-one".