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630827632780 = 225229137735291
BaseRepresentation
bin10010010111000000100…
…00011100100010001100
32020022021110111001121021
421023200100130202030
540313413333222110
61201444225243524
763401332256302
oct11134020344214
92208243431537
10630827632780
11223594831364
12a2312a935a4
134764362bb37
14227645ac272
151162147b2da
hex92e041c88c

630827632780 has 24 divisors (see below), whose sum is σ = 1330522920720. Its totient is φ = 251229168960.

The previous prime is 630827632711. The next prime is 630827632781. The reversal of 630827632780 is 87236728036.

It is not an unprimeable number, because it can be changed into a prime (630827632781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68863066 + ... + 68872225.

It is an arithmetic number, because the mean of its divisors is an integer number (55438455030).

Almost surely, 2630827632780 is an apocalyptic number.

It is an amenable number.

630827632780 is an abundant number, since it is smaller than the sum of its proper divisors (699695287940).

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

630827632780 is a wasteful number, since it uses less digits than its factorization.

630827632780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137735529 (or 137735527 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 630827632780 in words is "six hundred thirty billion, eight hundred twenty-seven million, six hundred thirty-two thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 229 458 916 1145 2290 4580 137735291 275470582 550941164 688676455 1377352910 2754705820 31541381639 63082763278 126165526556 157706908195 315413816390 630827632780