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12272825 = 52490913
BaseRepresentation
bin101110110100…
…010010111001
3212002112011002
4232310102321
511120212300
61115014345
7206213555
oct56642271
925075132
1012272825
116a22834
12413a3b5
132709236
1418b6865
1511265d5
hexbb44b9

12272825 has 6 divisors (see below), whose sum is σ = 15218334. Its totient is φ = 9818240.

The previous prime is 12272801. The next prime is 12272831. The reversal of 12272825 is 52827221.

12272825 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 273529 + 11999296 = 523^2 + 3464^2 .

It is not a de Polignac number, because 12272825 - 210 = 12271801 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 245432 + ... + 245481.

It is an arithmetic number, because the mean of its divisors is an integer number (2536389).

Almost surely, 212272825 is an apocalyptic number.

It is an amenable number.

12272825 is a deficient number, since it is larger than the sum of its proper divisors (2945509).

12272825 is an equidigital number, since it uses as much as digits as its factorization.

12272825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490923 (or 490918 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 12272825 is about 3503.2591968052. The cubic root of 12272825 is about 230.6649002040.

The spelling of 12272825 in words is "twelve million, two hundred seventy-two thousand, eight hundred twenty-five".

Divisors: 1 5 25 490913 2454565 12272825