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630897120 = 25335731673
BaseRepresentation
bin100101100110101…
…011100111100000
31121222010220011000
4211212223213200
52243002201440
6142334152000
721430352130
oct4546534740
91558126130
10630897120
112a4141387
12157352600
13a0926009
145db0aac0
153a5c2730
hex259ab9e0

630897120 has 384 divisors, whose sum is σ = 2608865280. Its totient is φ = 139345920.

The previous prime is 630897119. The next prime is 630897131. The reversal of 630897120 is 21798036.

630897120 is a `hidden beast` number, since 630 + 8 + 9 + 7 + 12 + 0 = 666.

630897120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 937104 + ... + 937776.

It is an arithmetic number, because the mean of its divisors is an integer number (6793920).

Almost surely, 2630897120 is an apocalyptic number.

630897120 is a gapful number since it is divisible by the number (60) 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 630897120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1304432640).

630897120 is an abundant number, since it is smaller than the sum of its proper divisors (1977968160).

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

630897120 is a wasteful number, since it uses less digits than its factorization.

630897120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 630897120 is about 25117.6654966181. The cubic root of 630897120 is about 857.6686088786.

The spelling of 630897120 in words is "six hundred thirty million, eight hundred ninety-seven thousand, one hundred twenty".