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630702680 = 23515767567
BaseRepresentation
bin100101100101111…
…100001001011000
31121221210000102112
4211211330021120
52242424441210
6142330051452
721425612216
oct4545741130
91557700375
10630702680
112a4019293
12157279b88
13a088866a
145da99cb6
153a584d05
hex2597c258

630702680 has 16 divisors (see below), whose sum is σ = 1419081120. Its totient is φ = 252281056.

The previous prime is 630702673. The next prime is 630702697. The reversal of 630702680 is 86207036.

630702680 is digitally balanced in base 6, 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 3 ways as a sum of consecutive naturals, for example, 7883744 + ... + 7883823.

It is an arithmetic number, because the mean of its divisors is an integer number (88692570).

Almost surely, 2630702680 is an apocalyptic number.

It is an amenable number.

630702680 is an abundant number, since it is smaller than the sum of its proper divisors (788378440).

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

630702680 is a wasteful number, since it uses less digits than its factorization.

630702680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15767578 (or 15767574 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 630702680 is about 25113.7946157087. The cubic root of 630702680 is about 857.5804897997.

The spelling of 630702680 in words is "six hundred thirty million, seven hundred two thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 15767567 31535134 63070268 78837835 126140536 157675670 315351340 630702680