Search a number
-
+
12680995 = 510392441
BaseRepresentation
bin110000010111…
…111100100011
3212212021001111
4300113330203
511221242440
61131444151
7212533555
oct60277443
925767044
1012680995
117181468
1242b6657
13281cc62
1419814d5
1511a74ea
hexc17f23

12680995 has 8 divisors (see below), whose sum is σ = 15238080. Its totient is φ = 10130880.

The previous prime is 12680977. The next prime is 12681007. The reversal of 12680995 is 59908621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12680995 - 27 = 12680867 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3975 + ... + 6415.

It is an arithmetic number, because the mean of its divisors is an integer number (1904760).

Almost surely, 212680995 is an apocalyptic number.

12680995 is a deficient number, since it is larger than the sum of its proper divisors (2557085).

12680995 is a wasteful number, since it uses less digits than its factorization.

12680995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3485.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 12680995 is about 3561.0384721314. The cubic root of 12680995 is about 233.1942175277.

The spelling of 12680995 in words is "twelve million, six hundred eighty thousand, nine hundred ninety-five".

Divisors: 1 5 1039 2441 5195 12205 2536199 12680995