Search a number
-
+
12970838 = 26485419
BaseRepresentation
bin110001011110…
…101101010110
3220101222122102
4301132231112
511310031323
61142002102
7215151566
oct61365526
926358572
1012970838
11735a201
124416332
1328c1b6a
141a18da6
151213328
hexc5eb56

12970838 has 4 divisors (see below), whose sum is σ = 19456260. Its totient is φ = 6485418.

The previous prime is 12970829. The next prime is 12970843. The reversal of 12970838 is 83807921.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3242708 + ... + 3242711.

It is an arithmetic number, because the mean of its divisors is an integer number (4864065).

Almost surely, 212970838 is an apocalyptic number.

12970838 is a deficient number, since it is larger than the sum of its proper divisors (6485422).

12970838 is an equidigital number, since it uses as much as digits as its factorization.

12970838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6485421.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 12970838 is about 3601.5049632064. The cubic root of 12970838 is about 234.9575175960.

The spelling of 12970838 in words is "twelve million, nine hundred seventy thousand, eight hundred thirty-eight".

Divisors: 1 2 6485419 12970838