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14958139 = 72136877
BaseRepresentation
bin111001000011…
…111000111011
31001010221201011
4321003320323
512312130024
61252334351
7241066510
oct71037073
931127634
1014958139
1184972a9
1250143b7
133139591
141db5307
1514a7094
hexe43e3b

14958139 has 4 divisors (see below), whose sum is σ = 17095024. Its totient is φ = 12821256.

The previous prime is 14958133. The next prime is 14958157. The reversal of 14958139 is 93185941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93185941 = 149625409.

It is not a de Polignac number, because 14958139 - 25 = 14958107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14958133) 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, 1068432 + ... + 1068445.

It is an arithmetic number, because the mean of its divisors is an integer number (4273756).

Almost surely, 214958139 is an apocalyptic number.

14958139 is a deficient number, since it is larger than the sum of its proper divisors (2136885).

14958139 is an equidigital number, since it uses as much as digits as its factorization.

14958139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136884.

The product of its digits is 38880, while the sum is 40.

The square root of 14958139 is about 3867.5753386327. The cubic root of 14958139 is about 246.3915756786.

The spelling of 14958139 in words is "fourteen million, nine hundred fifty-eight thousand, one hundred thirty-nine".

Divisors: 1 7 2136877 14958139