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14874139 = 72124877
BaseRepresentation
bin111000101111…
…011000011011
31000222200111001
4320233120123
512301433024
61250445431
7240266560
oct70573033
930880431
1014874139
11843a185
124b93877
13310a287
141d92867
15148c244
hexe2f61b

14874139 has 4 divisors (see below), whose sum is σ = 16999024. Its totient is φ = 12749256.

The previous prime is 14874109. The next prime is 14874151. The reversal of 14874139 is 93147841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93147841 = 179520379.

It is a cyclic number.

It is not a de Polignac number, because 14874139 - 27 = 14874011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14874098 and 14874107.

It is not an unprimeable number, because it can be changed into a prime (14874109) 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, 1062432 + ... + 1062445.

It is an arithmetic number, because the mean of its divisors is an integer number (4249756).

Almost surely, 214874139 is an apocalyptic number.

14874139 is a deficient number, since it is larger than the sum of its proper divisors (2124885).

14874139 is an equidigital number, since it uses as much as digits as its factorization.

14874139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124884.

The product of its digits is 24192, while the sum is 37.

The square root of 14874139 is about 3856.7005328389. The cubic root of 14874139 is about 245.9294915473.

The spelling of 14874139 in words is "fourteen million, eight hundred seventy-four thousand, one hundred thirty-nine".

Divisors: 1 7 2124877 14874139