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14639941 = 171137621
BaseRepresentation
bin110111110110…
…001101000101
31000112210020001
4313312031011
512221434231
61241441301
7235303021
oct67661505
930483201
1014639941
11829a228
124aa0231
1330577b4
141d31381
151442b61
hexdf6345

14639941 has 8 divisors (see below), whose sum is σ = 15640344. Its totient is φ = 13655040.

The previous prime is 14639929. The next prime is 14639951. The reversal of 14639941 is 14993641.

It can be written as a sum of positive squares in 4 ways, for example, as 2592100 + 12047841 = 1610^2 + 3471^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-14639941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14639941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14639921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1890 + ... + 5731.

It is an arithmetic number, because the mean of its divisors is an integer number (1955043).

Almost surely, 214639941 is an apocalyptic number.

It is an amenable number.

14639941 is a deficient number, since it is larger than the sum of its proper divisors (1000403).

14639941 is a wasteful number, since it uses less digits than its factorization.

14639941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7751.

The product of its digits is 23328, while the sum is 37.

The square root of 14639941 is about 3826.2175839855. The cubic root of 14639941 is about 244.6319115111.

The spelling of 14639941 in words is "fourteen million, six hundred thirty-nine thousand, nine hundred forty-one".

Divisors: 1 17 113 1921 7621 129557 861173 14639941