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14057491 = 72008213
BaseRepresentation
bin110101101000…
…000000010011
3222110012020211
4311220000103
512044314431
61221144551
7230325640
oct65500023
928405224
1014057491
117a31668
12485b157
132bb2656
141c1cdc7
15137a2b1
hexd68013

14057491 has 4 divisors (see below), whose sum is σ = 16065712. Its totient is φ = 12049272.

The previous prime is 14057467. The next prime is 14057501. The reversal of 14057491 is 19475041.

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

It is a cyclic number.

It is not a de Polignac number, because 14057491 - 215 = 14024723 is a prime.

It is a super-3 number, since 3×140574913 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14057411) 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, 1004100 + ... + 1004113.

It is an arithmetic number, because the mean of its divisors is an integer number (4016428).

Almost surely, 214057491 is an apocalyptic number.

14057491 is a deficient number, since it is larger than the sum of its proper divisors (2008221).

14057491 is an equidigital number, since it uses as much as digits as its factorization.

14057491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008220.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 14057491 is about 3749.3320738500. The cubic root of 14057491 is about 241.3436841624.

The spelling of 14057491 in words is "fourteen million, fifty-seven thousand, four hundred ninety-one".

Divisors: 1 7 2008213 14057491