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12108900 = 22352181223
BaseRepresentation
bin101110001100…
…010001100100
3211210012021210
4232030101210
511044441100
61111311420
7204631626
oct56142144
924705253
1012108900
116920661
12407b570
13267c73b
141872c16
1510e2c50
hexb8c464

12108900 has 72 divisors (see below), whose sum is σ = 35386624. Its totient is φ = 3196800.

The previous prime is 12108893. The next prime is 12108911. The reversal of 12108900 is 980121.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54189 + ... + 54411.

Almost surely, 212108900 is an apocalyptic number.

12108900 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 12108900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17693312).

12108900 is an abundant number, since it is smaller than the sum of its proper divisors (23277724).

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

12108900 is a wasteful number, since it uses less digits than its factorization.

12108900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 12108900 is about 3479.7844760847. The cubic root of 12108900 is about 229.6333161559.

The spelling of 12108900 in words is "twelve million, one hundred eight thousand, nine hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 150 181 223 300 362 446 543 669 724 892 905 1086 1115 1338 1810 2172 2230 2676 2715 3345 3620 4460 4525 5430 5575 6690 9050 10860 11150 13380 13575 16725 18100 22300 27150 33450 40363 54300 66900 80726 121089 161452 201815 242178 403630 484356 605445 807260 1009075 1210890 2018150 2421780 3027225 4036300 6054450 12108900