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12965242 = 26482621
BaseRepresentation
bin110001011101…
…010101111010
3220101200222011
4301131111322
511304341432
61141520134
7215126353
oct61352572
926350864
1012965242
117355a84
12441304a
1328bc454
141a16d2a
151211847
hexc5d57a

12965242 has 4 divisors (see below), whose sum is σ = 19447866. Its totient is φ = 6482620.

The previous prime is 12965219. The next prime is 12965257. The reversal of 12965242 is 24256921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24256921 = 131865917.

It can be written as a sum of positive squares in only one way, i.e., 7447441 + 5517801 = 2729^2 + 2349^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3241309 + ... + 3241312.

Almost surely, 212965242 is an apocalyptic number.

12965242 is a deficient number, since it is larger than the sum of its proper divisors (6482624).

12965242 is an equidigital number, since it uses as much as digits as its factorization.

12965242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6482623.

The product of its digits is 8640, while the sum is 31.

The square root of 12965242 is about 3600.7279819503. The cubic root of 12965242 is about 234.9237235472.

The spelling of 12965242 in words is "twelve million, nine hundred sixty-five thousand, two hundred forty-two".

Divisors: 1 2 6482621 12965242