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12875938 = 26437969
BaseRepresentation
bin110001000111…
…100010100010
3220020011110121
4301013202202
511244012223
61135550454
7214305115
oct61074242
926204417
1012875938
1172a4979
12438b42a
13288a8ca
1419d257c
1511e515d
hexc478a2

12875938 has 4 divisors (see below), whose sum is σ = 19313910. Its totient is φ = 6437968.

The previous prime is 12875917. The next prime is 12875969. The reversal of 12875938 is 83957821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83957821 = 337249133.

It can be written as a sum of positive squares in only one way, i.e., 6640929 + 6235009 = 2577^2 + 2497^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12875894 and 12875903.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3218983 + ... + 3218986.

Almost surely, 212875938 is an apocalyptic number.

12875938 is a deficient number, since it is larger than the sum of its proper divisors (6437972).

12875938 is an equidigital number, since it uses as much as digits as its factorization.

12875938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6437971.

The product of its digits is 120960, while the sum is 43.

The square root of 12875938 is about 3588.3057283348. The cubic root of 12875938 is about 234.3830990505.

It can be divided in two parts, 1287 and 5938, that added together give a square (7225 = 852).

The spelling of 12875938 in words is "twelve million, eight hundred seventy-five thousand, nine hundred thirty-eight".

Divisors: 1 2 6437969 12875938