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12305080 = 235307627
BaseRepresentation
bin101110111100…
…001010111000
3212011011101201
4232330022320
511122230310
61115423544
7206406604
oct56741270
925134351
1012305080
116a44a97
124154bb4
13271ab18
1418c4504
151130e3a
hexbbc2b8

12305080 has 16 divisors (see below), whose sum is σ = 27686520. Its totient is φ = 4922016.

The previous prime is 12305071. The next prime is 12305113. The reversal of 12305080 is 8050321.

It is a happy number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 153774 + ... + 153853.

Almost surely, 212305080 is an apocalyptic number.

12305080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12305080 is an abundant number, since it is smaller than the sum of its proper divisors (15381440).

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

12305080 is a wasteful number, since it uses less digits than its factorization.

12305080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307638 (or 307634 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 12305080 is about 3507.8597463411. The cubic root of 12305080 is about 230.8667985153.

The spelling of 12305080 in words is "twelve million, three hundred five thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 307627 615254 1230508 1538135 2461016 3076270 6152540 12305080