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14157291 = 34719097
BaseRepresentation
bin110110000000…
…010111101011
3222122021011010
4312000113223
512111013131
61223235003
7231222621
oct66002753
928567133
1014157291
117a9a645
1248a8a63
132c18bc5
141c47511
151399b46
hexd805eb

14157291 has 4 divisors (see below), whose sum is σ = 18876392. Its totient is φ = 9438192.

The previous prime is 14157287. The next prime is 14157317. The reversal of 14157291 is 19275141.

14157291 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 14157291 - 22 = 14157287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14157211) 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, 2359546 + ... + 2359551.

It is an arithmetic number, because the mean of its divisors is an integer number (4719098).

Almost surely, 214157291 is an apocalyptic number.

14157291 is a deficient number, since it is larger than the sum of its proper divisors (4719101).

14157291 is an equidigital number, since it uses as much as digits as its factorization.

14157291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4719100.

The product of its digits is 2520, while the sum is 30.

The square root of 14157291 is about 3762.6175729138. The cubic root of 14157291 is about 241.9134711023.

The spelling of 14157291 in words is "fourteen million, one hundred fifty-seven thousand, two hundred ninety-one".

Divisors: 1 3 4719097 14157291