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12303900 = 2234527231
BaseRepresentation
bin101110111011…
…111000011100
3212011002210000
4232323320130
511122211100
61115414300
7206403300
oct56737034
925132700
1012303900
116a44114
124154390
13271a41b
1418c3d00
151130900
hexbbbe1c

12303900 has 270 divisors, whose sum is σ = 47892768. Its totient is φ = 2721600.

The previous prime is 12303881. The next prime is 12303911. The reversal of 12303900 is 930321.

It is a tau number, because it is divible by the number of its divisors (270).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 5.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 396885 + ... + 396915.

Almost surely, 212303900 is an apocalyptic number.

12303900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12303900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23946384).

12303900 is an abundant number, since it is smaller than the sum of its proper divisors (35588868).

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

12303900 is a wasteful number, since it uses less digits than its factorization.

12303900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 12303900 is about 3507.6915485829. The cubic root of 12303900 is about 230.8594185949.

It can be divided in two parts, 12303 and 900, that added together give a triangular number (13203 = T162).

The spelling of 12303900 in words is "twelve million, three hundred three thousand, nine hundred".