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14910857 = 131146989
BaseRepresentation
bin111000111000…
…010110001001
31001001112211222
4320320112021
512304121412
61251331425
7240511613
oct70702611
931045758
1014910857
118464825
124bb0b75
133120bc0
141da1db3
151498072
hexe38589

14910857 has 4 divisors (see below), whose sum is σ = 16057860. Its totient is φ = 13763856.

The previous prime is 14910829. The next prime is 14910881. The reversal of 14910857 is 75801941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75801941 = 262128921.

It can be written as a sum of positive squares in 2 ways, for example, as 1485961 + 13424896 = 1219^2 + 3664^2 .

It is a cyclic number.

It is not a de Polignac number, because 14910857 - 212 = 14906761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14910817) 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 in 3 ways as a sum of consecutive naturals, for example, 573482 + ... + 573507.

It is an arithmetic number, because the mean of its divisors is an integer number (4014465).

Almost surely, 214910857 is an apocalyptic number.

It is an amenable number.

14910857 is a deficient number, since it is larger than the sum of its proper divisors (1147003).

14910857 is a wasteful number, since it uses less digits than its factorization.

14910857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147002.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 14910857 is about 3861.4578853071. The cubic root of 14910857 is about 246.1316907869.

The spelling of 14910857 in words is "fourteen million, nine hundred ten thousand, eight hundred fifty-seven".

Divisors: 1 13 1146989 14910857