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14631979 = 232921937
BaseRepresentation
bin110111110100…
…010000101011
31000112101022011
4313310100223
512221210404
61241340351
7235240555
oct67642053
930471264
1014631979
11829424a
124a976b7
133053c9b
141d2c4d5
151440604
hexdf442b

14631979 has 8 divisors (see below), whose sum is σ = 15795360. Its totient is φ = 13512576.

The previous prime is 14631977. The next prime is 14631989. The reversal of 14631979 is 97913641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14631979 - 21 = 14631977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14631977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10302 + ... + 11635.

It is an arithmetic number, because the mean of its divisors is an integer number (1974420).

Almost surely, 214631979 is an apocalyptic number.

14631979 is a deficient number, since it is larger than the sum of its proper divisors (1163381).

14631979 is a wasteful number, since it uses less digits than its factorization.

14631979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21989.

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

The square root of 14631979 is about 3825.1769893693. The cubic root of 14631979 is about 244.5875554014.

The spelling of 14631979 in words is "fourteen million, six hundred thirty-one thousand, nine hundred seventy-nine".

Divisors: 1 23 29 667 21937 504551 636173 14631979