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12208932 = 2232339137
BaseRepresentation
bin101110100100…
…101100100100
3211222021111200
4232210230210
511111141212
61113402500
7205526361
oct56445444
924867450
1012208932
11698982a
124109430
1326b6128
14189b468
1511126dc
hexba4b24

12208932 has 18 divisors (see below), whose sum is σ = 30861558. Its totient is φ = 4069632.

The previous prime is 12208919. The next prime is 12208949. The reversal of 12208932 is 23980221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11655396 + 553536 = 3414^2 + 744^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 12208896 and 12208905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 169533 + ... + 169604.

It is an arithmetic number, because the mean of its divisors is an integer number (1714531).

Almost surely, 212208932 is an apocalyptic number.

12208932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12208932 is an abundant number, since it is smaller than the sum of its proper divisors (18652626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12208932 is a wasteful number, since it uses less digits than its factorization.

12208932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339147 (or 339142 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 12208932 is about 3494.1282174528. The cubic root of 12208932 is about 230.2639188465.

The spelling of 12208932 in words is "twelve million, two hundred eight thousand, nine hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 339137 678274 1017411 1356548 2034822 3052233 4069644 6104466 12208932