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13718953 is a prime number
BaseRepresentation
bin110100010101…
…010110101001
3221210222212101
4310111112221
512003001303
61210013401
7224415643
oct64252651
927728771
1013718953
117820286
124717261
132ac4531
141b71893
15130ed1d
hexd155a9

13718953 has 2 divisors, whose sum is σ = 13718954. Its totient is φ = 13718952.

The previous prime is 13718951. The next prime is 13718981. The reversal of 13718953 is 35981731.

It is a happy number.

13718953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13344409 + 374544 = 3653^2 + 612^2 .

It is a cyclic number.

It is not a de Polignac number, because 13718953 - 21 = 13718951 is a prime.

Together with 13718951, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13718951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6859476 + 6859477.

It is an arithmetic number, because the mean of its divisors is an integer number (6859477).

Almost surely, 213718953 is an apocalyptic number.

It is an amenable number.

13718953 is a deficient number, since it is larger than the sum of its proper divisors (1).

13718953 is an equidigital number, since it uses as much as digits as its factorization.

13718953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 37.

The square root of 13718953 is about 3703.9105010786. The cubic root of 13718953 is about 239.3905427716.

The spelling of 13718953 in words is "thirteen million, seven hundred eighteen thousand, nine hundred fifty-three".