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12965371 = 67193513
BaseRepresentation
bin110001011101…
…010111111011
3220101201010221
4301131113323
511304342441
61141520511
7215126626
oct61352773
926351127
1012965371
117356091
124413137
1328bc523
141a16dbd
1512118d1
hexc5d5fb

12965371 has 4 divisors (see below), whose sum is σ = 13158952. Its totient is φ = 12771792.

The previous prime is 12965369. The next prime is 12965383. The reversal of 12965371 is 17356921.

12965371 is digitally balanced in base 3, 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: 17356921 = 149911579.

It is a cyclic number.

It is not a de Polignac number, because 12965371 - 21 = 12965369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12965341) 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, 96690 + ... + 96823.

It is an arithmetic number, because the mean of its divisors is an integer number (3289738).

Almost surely, 212965371 is an apocalyptic number.

12965371 is a deficient number, since it is larger than the sum of its proper divisors (193581).

12965371 is an equidigital number, since it uses as much as digits as its factorization.

12965371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193580.

The product of its digits is 11340, while the sum is 34.

The square root of 12965371 is about 3600.7458949501. The cubic root of 12965371 is about 234.9245026832.

The spelling of 12965371 in words is "twelve million, nine hundred sixty-five thousand, three hundred seventy-one".

Divisors: 1 67 193513 12965371