Search a number
-
+
12855297 = 37313312
BaseRepresentation
bin110001000010…
…100000000001
3220012010011010
4301002200001
511242332142
61135311133
7214161000
oct61024001
926163133
1012855297
117290414
12437b4a9
1328813b0
1419c8c37
1511dde9c
hexc42801

12855297 has 48 divisors (see below), whose sum is σ = 22243200. Its totient is φ = 6562080.

The previous prime is 12855287. The next prime is 12855307. The reversal of 12855297 is 79255821.

It is an interprime number because it is at equal distance from previous prime (12855287) and next prime (12855307).

It is not a de Polignac number, because 12855297 - 26 = 12855233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (12855217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 414672 + ... + 414702.

It is an arithmetic number, because the mean of its divisors is an integer number (463400).

Almost surely, 212855297 is an apocalyptic number.

It is an amenable number.

12855297 is a deficient number, since it is larger than the sum of its proper divisors (9387903).

12855297 is an equidigital number, since it uses as much as digits as its factorization.

12855297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 54 counting only the distinct ones).

The product of its digits is 50400, while the sum is 39.

The square root of 12855297 is about 3585.4284262833. The cubic root of 12855297 is about 234.2577880760.

The spelling of 12855297 in words is "twelve million, eight hundred fifty-five thousand, two hundred ninety-seven".

Divisors: 1 3 7 13 21 31 39 49 91 93 147 217 273 343 403 637 651 961 1029 1209 1519 1911 2821 2883 4459 4557 6727 8463 10633 12493 13377 19747 20181 31899 37479 47089 59241 87451 138229 141267 262353 329623 414687 612157 988869 1836471 4285099 12855297