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12300380 = 225615019
BaseRepresentation
bin101110111011…
…000001011100
3212010220221122
4232323001130
511122103010
61115350112
7206360111
oct56730134
925126848
1012300380
116a41504
124152338
132718941
1418c2908
15112e855
hexbbb05c

12300380 has 12 divisors (see below), whose sum is σ = 25830840. Its totient is φ = 4920144.

The previous prime is 12300373. The next prime is 12300383. The reversal of 12300380 is 8300321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12300383) by changing a digit.

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, 307490 + ... + 307529.

It is an arithmetic number, because the mean of its divisors is an integer number (2152570).

Almost surely, 212300380 is an apocalyptic number.

12300380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12300380 is an abundant number, since it is smaller than the sum of its proper divisors (13530460).

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

12300380 is a wasteful number, since it uses less digits than its factorization.

12300380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615028 (or 615026 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 12300380 is about 3507.1897581967. The cubic root of 12300380 is about 230.8374011137.

The spelling of 12300380 in words is "twelve million, three hundred thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 615019 1230038 2460076 3075095 6150190 12300380