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12996237 = 34332079
BaseRepresentation
bin110001100100…
…111010001101
3220110021111010
4301210322031
511311334422
61142315433
7215315622
oct61447215
926407433
1012996237
1173772a1
124428b79
1329005a7
141a24349
15121ab0c
hexc64e8d

12996237 has 4 divisors (see below), whose sum is σ = 17328320. Its totient is φ = 8664156.

The previous prime is 12996229. The next prime is 12996239. The reversal of 12996237 is 73269921.

12996237 is digitally balanced in base 2 and base 4, because in such bases 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 Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12996237 - 23 = 12996229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12996195 and 12996204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12996239) 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, 2166037 + ... + 2166042.

It is an arithmetic number, because the mean of its divisors is an integer number (4332080).

Almost surely, 212996237 is an apocalyptic number.

It is an amenable number.

12996237 is a deficient number, since it is larger than the sum of its proper divisors (4332083).

12996237 is an equidigital number, since it uses as much as digits as its factorization.

12996237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4332082.

The product of its digits is 40824, while the sum is 39.

The square root of 12996237 is about 3605.0294034862. The cubic root of 12996237 is about 235.1107792175.

The spelling of 12996237 in words is "twelve million, nine hundred ninety-six thousand, two hundred thirty-seven".

Divisors: 1 3 4332079 12996237