Search a number
-
+
12969653 = 411372309
BaseRepresentation
bin110001011110…
…011010110101
3220101221000112
4301132122311
511310012103
61141552405
7215145254
oct61363265
926357015
1012969653
117359324
124415705
1328c1468
141a1879b
151212cd8
hexc5e6b5

12969653 has 8 divisors (see below), whose sum is σ = 13388760. Its totient is φ = 12555520.

The previous prime is 12969611. The next prime is 12969661. The reversal of 12969653 is 35696921.

12969653 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1423249 + 11546404 = 1193^2 + 3398^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12969653 - 216 = 12904117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12969653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12969553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4463 + ... + 6771.

It is an arithmetic number, because the mean of its divisors is an integer number (1673595).

Almost surely, 212969653 is an apocalyptic number.

It is an amenable number.

12969653 is a deficient number, since it is larger than the sum of its proper divisors (419107).

12969653 is a wasteful number, since it uses less digits than its factorization.

12969653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487.

The product of its digits is 87480, while the sum is 41.

The square root of 12969653 is about 3601.3404448899. The cubic root of 12969653 is about 234.9503622337.

The spelling of 12969653 in words is "twelve million, nine hundred sixty-nine thousand, six hundred fifty-three".

Divisors: 1 41 137 2309 5617 94669 316333 12969653