Search a number
-
+
12910666 = 219313343
BaseRepresentation
bin110001010000…
…000001001010
3220021221002211
4301100001022
511301120131
61140415334
7214511266
oct61200112
926257084
1012910666
117318a7a
1243a754a
1328a0662
141a010a6
1512005b1
hexc5004a

12910666 has 8 divisors (see below), whose sum is σ = 19381824. Its totient is φ = 6450060.

The previous prime is 12910661. The next prime is 12910679. The reversal of 12910666 is 66601921.

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

It is not an unprimeable number, because it can be changed into a prime (12910661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2191 + ... + 5533.

It is an arithmetic number, because the mean of its divisors is an integer number (2422728).

Almost surely, 212910666 is an apocalyptic number.

12910666 is a deficient number, since it is larger than the sum of its proper divisors (6471158).

12910666 is a wasteful number, since it uses less digits than its factorization.

12910666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5276.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 12910666 is about 3593.1415224007. The cubic root of 12910666 is about 234.5936299732.

The spelling of 12910666 in words is "twelve million, nine hundred ten thousand, six hundred sixty-six".

Divisors: 1 2 1931 3343 3862 6686 6455333 12910666