Search a number
-
+
12892357 = 86314939
BaseRepresentation
bin110001001011…
…100011000101
3220020222222201
4301023203011
511300023412
61140154501
7214404022
oct61134305
926228881
1012892357
117306245
124398a31
13289521a
1419d8549
1511e9e57
hexc4b8c5

12892357 has 4 divisors (see below), whose sum is σ = 12908160. Its totient is φ = 12876556.

The previous prime is 12892349. The next prime is 12892361. The reversal of 12892357 is 75329821.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75329821 = 710761403.

It is a cyclic number.

It is not a de Polignac number, because 12892357 - 23 = 12892349 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 (12892337) 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, 6607 + ... + 8332.

It is an arithmetic number, because the mean of its divisors is an integer number (3227040).

Almost surely, 212892357 is an apocalyptic number.

It is an amenable number.

12892357 is a deficient number, since it is larger than the sum of its proper divisors (15803).

12892357 is an equidigital number, since it uses as much as digits as its factorization.

12892357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15802.

The product of its digits is 30240, while the sum is 37.

The square root of 12892357 is about 3590.5928479849. The cubic root of 12892357 is about 234.4826827728.

The spelling of 12892357 in words is "twelve million, eight hundred ninety-two thousand, three hundred fifty-seven".

Divisors: 1 863 14939 12892357