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14644057 = 31147087
BaseRepresentation
bin110111110111…
…001101011001
31000112222212111
4313313031121
512222102212
61241512321
7235321021
oct67671531
930488774
1014644057
1182a232a
124aa26a1
13305962c
141d32a81
151443ea7
hexdf7359

14644057 has 4 divisors (see below), whose sum is σ = 14691456. Its totient is φ = 14596660.

The previous prime is 14644051. The next prime is 14644061. The reversal of 14644057 is 75044641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75044641 = 710720663.

It is a cyclic number.

It is not a de Polignac number, because 14644057 - 211 = 14642009 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14644051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23233 + ... + 23854.

It is an arithmetic number, because the mean of its divisors is an integer number (3672864).

Almost surely, 214644057 is an apocalyptic number.

It is an amenable number.

14644057 is a deficient number, since it is larger than the sum of its proper divisors (47399).

14644057 is an equidigital number, since it uses as much as digits as its factorization.

14644057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47398.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 14644057 is about 3826.7554141858. The cubic root of 14644057 is about 244.6548353421.

Adding to 14644057 its reverse (75044641), we get a palindrome (89688698).

The spelling of 14644057 in words is "fourteen million, six hundred forty-four thousand, fifty-seven".

Divisors: 1 311 47087 14644057