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14156231 = 83170557
BaseRepresentation
bin110110000000…
…000111000111
3222122012200212
4312000013013
512110444411
61223230035
7231216545
oct66000707
928565625
1014156231
117a99871
1248a831b
132c1858b
141c46d95
15139968b
hexd801c7

14156231 has 4 divisors (see below), whose sum is σ = 14326872. Its totient is φ = 13985592.

The previous prime is 14156221. The next prime is 14156239. The reversal of 14156231 is 13265141.

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 14156231 - 214 = 14139847 is a prime.

It is a super-2 number, since 2×141562312 = 400797752250722, 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 = 14156197 and 14156206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14156239) 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, 85196 + ... + 85361.

It is an arithmetic number, because the mean of its divisors is an integer number (3581718).

Almost surely, 214156231 is an apocalyptic number.

14156231 is a deficient number, since it is larger than the sum of its proper divisors (170641).

14156231 is an equidigital number, since it uses as much as digits as its factorization.

14156231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170640.

The product of its digits is 720, while the sum is 23.

The square root of 14156231 is about 3762.4767108914. The cubic root of 14156231 is about 241.9074333493.

The spelling of 14156231 in words is "fourteen million, one hundred fifty-six thousand, two hundred thirty-one".

Divisors: 1 83 170557 14156231