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12267225 = 325254521
BaseRepresentation
bin101110110010…
…111011011001
3212002020110200
4232302323121
511120022400
61114532413
7206161335
oct56627331
925066420
1012267225
116a19603
124137109
132706819
1418b47c5
151124b00
hexbb2ed9

12267225 has 18 divisors (see below), whose sum is σ = 21972366. Its totient is φ = 6542400.

The previous prime is 12267223. The next prime is 12267247. The reversal of 12267225 is 52276221.

It can be written as a sum of positive squares in 3 ways, for example, as 488601 + 11778624 = 699^2 + 3432^2 .

It is not a de Polignac number, because 12267225 - 21 = 12267223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12267223) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 27036 + ... + 27485.

It is an arithmetic number, because the mean of its divisors is an integer number (1220687).

Almost surely, 212267225 is an apocalyptic number.

12267225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12267225 is a deficient number, since it is larger than the sum of its proper divisors (9705141).

12267225 is a wasteful number, since it uses less digits than its factorization.

12267225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54537 (or 54529 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 12267225 is about 3502.4598498769. The cubic root of 12267225 is about 230.6298112994.

It can be divided in two parts, 12267 and 225, that multiplied together give a triangular number (2760075 = T2349).

The spelling of 12267225 in words is "twelve million, two hundred sixty-seven thousand, two hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 54521 163563 272605 490689 817815 1363025 2453445 4089075 12267225