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14157839 = 73193943
BaseRepresentation
bin110110000000…
…100000001111
3222122021220102
4312000200033
512111022324
61223241315
7231224333
oct66004017
928567812
1014157839
117a9aaa3
1248a923b
132c19227
141c477c3
151399dae
hexd8080f

14157839 has 4 divisors (see below), whose sum is σ = 14351856. Its totient is φ = 13963824.

The previous prime is 14157823. The next prime is 14157841. The reversal of 14157839 is 93875141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93875141 = 255736713.

It is a cyclic number.

It is not a de Polignac number, because 14157839 - 24 = 14157823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14157859) 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, 96899 + ... + 97044.

It is an arithmetic number, because the mean of its divisors is an integer number (3587964).

Almost surely, 214157839 is an apocalyptic number.

14157839 is a deficient number, since it is larger than the sum of its proper divisors (194017).

14157839 is an equidigital number, since it uses as much as digits as its factorization.

14157839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194016.

The product of its digits is 30240, while the sum is 38.

The square root of 14157839 is about 3762.6903938538. The cubic root of 14157839 is about 241.9165923885.

The spelling of 14157839 in words is "fourteen million, one hundred fifty-seven thousand, eight hundred thirty-nine".

Divisors: 1 73 193943 14157839