[go: up one dir, main page]

Search a number
-
+
12985930 = 2519411667
BaseRepresentation
bin110001100010…
…011001001010
3220102202100101
4301202121022
511311022210
61142200014
7215243566
oct61423112
926382311
1012985930
11736a581
12442300a
1328c89a9
141a206a6
151217a3a
hexc6264a

12985930 has 32 divisors (see below), whose sum is σ = 25220160. Its totient is φ = 4798080.

The previous prime is 12985919. The next prime is 12985969. The reversal of 12985930 is 3958921.

It is a self number, because there is not a number n which added to its sum of digits gives 12985930.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6957 + ... + 8623.

It is an arithmetic number, because the mean of its divisors is an integer number (788130).

Almost surely, 212985930 is an apocalyptic number.

12985930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12985930 is a deficient number, since it is larger than the sum of its proper divisors (12234230).

12985930 is a wasteful number, since it uses less digits than its factorization.

12985930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 12985930 is about 3603.5995892996. The cubic root of 12985930 is about 235.0486092293.

The spelling of 12985930 in words is "twelve million, nine hundred eighty-five thousand, nine hundred thirty".

Divisors: 1 2 5 10 19 38 41 82 95 190 205 410 779 1558 1667 3334 3895 7790 8335 16670 31673 63346 68347 136694 158365 316730 341735 683470 1298593 2597186 6492965 12985930