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14869939 = 72124277
BaseRepresentation
bin111000101110…
…010110110011
31000222110201111
4320232112303
512301314224
61250414151
7240251410
oct70562663
930873644
1014869939
118437007
124b91357
1331083a6
141d91107
15148ad94
hexe2e5b3

14869939 has 4 divisors (see below), whose sum is σ = 16994224. Its totient is φ = 12745656.

The previous prime is 14869919. The next prime is 14869949. The reversal of 14869939 is 93996841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93996841 = 227414083.

It is not a de Polignac number, because 14869939 - 29 = 14869427 is a prime.

It is a super-2 number, since 2×148699392 = 442230171727442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14869892 and 14869901.

It is not an unprimeable number, because it can be changed into a prime (14869919) 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, 1062132 + ... + 1062145.

It is an arithmetic number, because the mean of its divisors is an integer number (4248556).

Almost surely, 214869939 is an apocalyptic number.

14869939 is a deficient number, since it is larger than the sum of its proper divisors (2124285).

14869939 is an equidigital number, since it uses as much as digits as its factorization.

14869939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124284.

The product of its digits is 419904, while the sum is 49.

The square root of 14869939 is about 3856.1559875088. The cubic root of 14869939 is about 245.9063417233.

The spelling of 14869939 in words is "fourteen million, eight hundred sixty-nine thousand, nine hundred thirty-nine".

Divisors: 1 7 2124277 14869939