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12894311 = 14986539
BaseRepresentation
bin110001001100…
…000001100111
3220021002200002
4301030001213
511300104221
61140211515
7214412513
oct61140147
926232602
1012894311
117307761
124399b9b
132896091
1419d9143
1511ea80b
hexc4c067

12894311 has 4 divisors (see below), whose sum is σ = 12981000. Its totient is φ = 12807624.

The previous prime is 12894269. The next prime is 12894341. The reversal of 12894311 is 11349821.

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 12894311 - 222 = 8700007 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 (12894341) 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, 43121 + ... + 43418.

It is an arithmetic number, because the mean of its divisors is an integer number (3245250).

Almost surely, 212894311 is an apocalyptic number.

12894311 is a deficient number, since it is larger than the sum of its proper divisors (86689).

12894311 is an equidigital number, since it uses as much as digits as its factorization.

12894311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86688.

The product of its digits is 1728, while the sum is 29.

The square root of 12894311 is about 3590.8649375882. The cubic root of 12894311 is about 234.4945284479.

The spelling of 12894311 in words is "twelve million, eight hundred ninety-four thousand, three hundred eleven".

Divisors: 1 149 86539 12894311