Search a number
-
+
12969347 = 89145723
BaseRepresentation
bin110001011110…
…010110000011
3220101220121012
4301132112003
511310004342
61141551135
7215144336
oct61362603
926356535
1012969347
117359076
1244154ab
1328c1291
141a1861d
151212b82
hexc5e583

12969347 has 4 divisors (see below), whose sum is σ = 13115160. Its totient is φ = 12823536.

The previous prime is 12969329. The next prime is 12969371. The reversal of 12969347 is 74396921.

12969347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74396921 = 154948029.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12969347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12969547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72773 + ... + 72950.

It is an arithmetic number, because the mean of its divisors is an integer number (3278790).

Almost surely, 212969347 is an apocalyptic number.

12969347 is a deficient number, since it is larger than the sum of its proper divisors (145813).

12969347 is an equidigital number, since it uses as much as digits as its factorization.

12969347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145812.

The product of its digits is 81648, while the sum is 41.

The square root of 12969347 is about 3601.2979604581. The cubic root of 12969347 is about 234.9485144491.

The spelling of 12969347 in words is "twelve million, nine hundred sixty-nine thousand, three hundred forty-seven".

Divisors: 1 89 145723 12969347