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12306880 = 26538459
BaseRepresentation
bin101110111100…
…100111000000
3212011020212101
4232330213000
511122310010
61115440144
7206415055
oct56744700
925136771
1012306880
116a46383
124156054
13271b8a1
1418c502c
15113173a
hexbbc9c0

12306880 has 28 divisors (see below), whose sum is σ = 29306520. Its totient is φ = 4922624.

The previous prime is 12306859. The next prime is 12306881. The reversal of 12306880 is 8860321.

12306880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12306881) 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, 18910 + ... + 19549.

Almost surely, 212306880 is an apocalyptic number.

12306880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12306880 is an abundant number, since it is smaller than the sum of its proper divisors (16999640).

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

12306880 is an equidigital number, since it uses as much as digits as its factorization.

12306880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38476 (or 38466 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 12306880 is about 3508.1163036593. The cubic root of 12306880 is about 230.8780551121.

The spelling of 12306880 in words is "twelve million, three hundred six thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 38459 76918 153836 192295 307672 384590 615344 769180 1230688 1538360 2461376 3076720 6153440 12306880