Search a number
-
+
12997063 = 21136151
BaseRepresentation
bin110001100101…
…000111000111
3220110022121201
4301211013013
511311401223
61142323331
7215321212
oct61450707
926408551
1012997063
117377982
124429547
132900a91
141a24779
15121aead
hexc651c7

12997063 has 4 divisors (see below), whose sum is σ = 13005328. Its totient is φ = 12988800.

The previous prime is 12997037. The next prime is 12997069. The reversal of 12997063 is 36079921.

12997063 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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 36079921 = 37975133.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12997063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12997069) 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, 963 + ... + 5188.

It is an arithmetic number, because the mean of its divisors is an integer number (3251332).

Almost surely, 212997063 is an apocalyptic number.

12997063 is a deficient number, since it is larger than the sum of its proper divisors (8265).

12997063 is an equidigital number, since it uses as much as digits as its factorization.

12997063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8264.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 12997063 is about 3605.1439638383. The cubic root of 12997063 is about 235.1157600795.

The spelling of 12997063 in words is "twelve million, nine hundred ninety-seven thousand, sixty-three".

Divisors: 1 2113 6151 12997063