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12672203 = 57122193
BaseRepresentation
bin110000010101…
…110011001011
3212211210222212
4300111303023
511221002303
61131335335
7212466125
oct60256313
925753885
1012672203
1171758a5
1242b154b
132818c5b
14197c215
1511a4ad8
hexc15ccb

12672203 has 4 divisors (see below), whose sum is σ = 12694968. Its totient is φ = 12649440.

The previous prime is 12672181. The next prime is 12672223. The reversal of 12672203 is 30227621.

12672203 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 an emirpimes, since its reverse is a distinct semiprime: 30227621 = 73414077.

It is a cyclic number.

It is not a de Polignac number, because 12672203 - 26 = 12672139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12672223) 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, 10526 + ... + 11667.

It is an arithmetic number, because the mean of its divisors is an integer number (3173742).

Almost surely, 212672203 is an apocalyptic number.

12672203 is a deficient number, since it is larger than the sum of its proper divisors (22765).

12672203 is an equidigital number, since it uses as much as digits as its factorization.

12672203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22764.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 12672203 is about 3559.8037867276. The cubic root of 12672203 is about 233.1403122527.

Adding to 12672203 its reverse (30227621), we get a palindrome (42899824).

The spelling of 12672203 in words is "twelve million, six hundred seventy-two thousand, two hundred three".

Divisors: 1 571 22193 12672203