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12854813 = 1272797
BaseRepresentation
bin110001000010…
…011000011101
3220012002111012
4301002120131
511242323223
61135305005
7214156406
oct61023035
926162435
1012854813
117290014
12437b165
1328810ca
1419c89ad
1511ddc78
hexc4261d

12854813 has 6 divisors (see below), whose sum is σ = 12973086. Its totient is φ = 12737592.

The previous prime is 12854761. The next prime is 12854819. The reversal of 12854813 is 31845821.

12854813 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10903204 + 1951609 = 3302^2 + 1397^2 .

It is not a de Polignac number, because 12854813 - 28 = 12854557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12854813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12854819) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15731 + ... + 16527.

It is an arithmetic number, because the mean of its divisors is an integer number (2162181).

Almost surely, 212854813 is an apocalyptic number.

It is an amenable number.

12854813 is a deficient number, since it is larger than the sum of its proper divisors (118273).

12854813 is an frugal number, since it uses more digits than its factorization.

12854813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051 (or 924 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 12854813 is about 3585.3609302272. The cubic root of 12854813 is about 234.2548481156.

The spelling of 12854813 in words is "twelve million, eight hundred fifty-four thousand, eight hundred thirteen".

Divisors: 1 127 797 16129 101219 12854813