[go: up one dir, main page]

Search a number
-
+
12814161 = 34271387
BaseRepresentation
bin110000111000…
…011101010001
3220010000201120
4300320131101
511240023121
61134352453
7213630033
oct60703521
926100646
1012814161
117262518
12435b729
132868759
1419b7c53
1511d1bc6
hexc38751

12814161 has 4 divisors (see below), whose sum is σ = 17085552. Its totient is φ = 8542772.

The previous prime is 12814159. The next prime is 12814169. The reversal of 12814161 is 16141821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12814161 - 21 = 12814159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12814169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2135691 + ... + 2135696.

It is an arithmetic number, because the mean of its divisors is an integer number (4271388).

Almost surely, 212814161 is an apocalyptic number.

It is an amenable number.

12814161 is a deficient number, since it is larger than the sum of its proper divisors (4271391).

12814161 is an equidigital number, since it uses as much as digits as its factorization.

12814161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271390.

The product of its digits is 384, while the sum is 24.

The square root of 12814161 is about 3579.6872768442. The cubic root of 12814161 is about 234.0076518792.

Adding to 12814161 its reverse (16141821), we get a palindrome (28955982).

The spelling of 12814161 in words is "twelve million, eight hundred fourteen thousand, one hundred sixty-one".

Divisors: 1 3 4271387 12814161