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12630900 = 2235271593
BaseRepresentation
bin110000001011…
…101101110100
3212202201100010
4300023231310
511213142100
61130420220
7212234532
oct60135564
925681303
1012630900
117147867
124291670
132803209
14196b152
151197750
hexc0bb74

12630900 has 72 divisors (see below), whose sum is σ = 37122624. Its totient is φ = 3315200.

The previous prime is 12630869. The next prime is 12630913. The reversal of 12630900 is 903621.

12630900 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 an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21004 + ... + 21596.

It is an arithmetic number, because the mean of its divisors is an integer number (515592).

Almost surely, 212630900 is an apocalyptic number.

12630900 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 12630900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18561312).

12630900 is an abundant number, since it is smaller than the sum of its proper divisors (24491724).

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

12630900 is a wasteful number, since it uses less digits than its factorization.

12630900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 12630900 is about 3553.9977490145. The cubic root of 12630900 is about 232.8867421586.

It can be divided in two parts, 12630 and 900, that added together give a triangular number (13530 = T164).

The spelling of 12630900 in words is "twelve million, six hundred thirty thousand, nine hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 71 75 100 142 150 213 284 300 355 426 593 710 852 1065 1186 1420 1775 1779 2130 2372 2965 3550 3558 4260 5325 5930 7100 7116 8895 10650 11860 14825 17790 21300 29650 35580 42103 44475 59300 84206 88950 126309 168412 177900 210515 252618 421030 505236 631545 842060 1052575 1263090 2105150 2526180 3157725 4210300 6315450 12630900