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14979631 = 29516539
BaseRepresentation
bin111001001001…
…001000101111
31001012001012011
4321021020233
512313322011
61253022051
7241216252
oct71111057
931161164
1014979631
118501467
125024927
1331462b4
141dbd099
1514ad621
hexe4922f

14979631 has 4 divisors (see below), whose sum is σ = 15496200. Its totient is φ = 14463064.

The previous prime is 14979611. The next prime is 14979641. The reversal of 14979631 is 13697941.

14979631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13697941 = 88715443.

It is a cyclic number.

It is not a de Polignac number, because 14979631 - 211 = 14977583 is a prime.

It is a super-2 number, since 2×149796312 = 448778689792322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14979611) 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, 258241 + ... + 258298.

It is an arithmetic number, because the mean of its divisors is an integer number (3874050).

Almost surely, 214979631 is an apocalyptic number.

14979631 is a deficient number, since it is larger than the sum of its proper divisors (516569).

14979631 is an equidigital number, since it uses as much as digits as its factorization.

14979631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516568.

The product of its digits is 40824, while the sum is 40.

The square root of 14979631 is about 3870.3528262937. The cubic root of 14979631 is about 246.5095251460.

The spelling of 14979631 in words is "fourteen million, nine hundred seventy-nine thousand, six hundred thirty-one".

Divisors: 1 29 516539 14979631