Search a number
-
+
12970886 = 213747339
BaseRepresentation
bin110001011110…
…101110000110
3220101222201012
4301132232012
511310032021
61142002222
7215151665
oct61365606
926358635
1012970886
11735a245
124416372
1328c1ba6
141a18ddc
15121335b
hexc5eb86

12970886 has 8 divisors (see below), whose sum is σ = 19598760. Its totient is φ = 6437968.

The previous prime is 12970879. The next prime is 12970889. The reversal of 12970886 is 68807921.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12970889) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23396 + ... + 23943.

It is an arithmetic number, because the mean of its divisors is an integer number (2449845).

Almost surely, 212970886 is an apocalyptic number.

12970886 is a deficient number, since it is larger than the sum of its proper divisors (6627874).

12970886 is a wasteful number, since it uses less digits than its factorization.

12970886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47478.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 12970886 is about 3601.5116270811. The cubic root of 12970886 is about 234.9578074243.

The spelling of 12970886 in words is "twelve million, nine hundred seventy thousand, eight hundred eighty-six".

Divisors: 1 2 137 274 47339 94678 6485443 12970886