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630342648080 = 2457879283101
BaseRepresentation
bin10010010110000110101…
…10011000000100010000
32020021000122220021122222
421023003112120010100
540311420204214310
61201324142320212
763353323050605
oct11130326300420
92207018807588
10630342648080
11223365aa0162
12a21b8589068
1347597003342
142271a0046ac
15115e3acc055
hex92c3598110

630342648080 has 20 divisors (see below), whose sum is σ = 1465546656972. Its totient is φ = 252137059200.

The previous prime is 630342648077. The next prime is 630342648097. The reversal of 630342648080 is 80846243036.

It can be written as a sum of positive squares in 2 ways, for example, as 428820664336 + 201521983744 = 654844^2 + 448912^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 3939641471 + ... + 3939641630.

Almost surely, 2630342648080 is an apocalyptic number.

It is an amenable number.

630342648080 is an abundant number, since it is smaller than the sum of its proper divisors (835204008892).

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

630342648080 is a wasteful number, since it uses less digits than its factorization.

630342648080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7879283114 (or 7879283108 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 44.

The spelling of 630342648080 in words is "six hundred thirty billion, three hundred forty-two million, six hundred forty-eight thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 7879283101 15758566202 31517132404 39396415505 63034264808 78792831010 126068529616 157585662020 315171324040 630342648080