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630512105142 = 23531982742469
BaseRepresentation
bin10010010110011010111…
…00110011011010110110
32020021110110202121001110
421023031130303122312
540312242044331032
61201353034335450
763360451315533
oct11131534633266
92207413677043
10630512105142
11223442711817
12a224528a586
13475c31554aa
1422734715d8a
15116039017cc
hex92cd7336b6

630512105142 has 16 divisors (see below), whose sum is σ = 1284817120560. Its totient is φ = 206205216672.

The previous prime is 630512105117. The next prime is 630512105173. The reversal of 630512105142 is 241501215036.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 991370917 + ... + 991371552.

It is an arithmetic number, because the mean of its divisors is an integer number (80301070035).

Almost surely, 2630512105142 is an apocalyptic number.

630512105142 is an abundant number, since it is smaller than the sum of its proper divisors (654305015418).

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

630512105142 is a wasteful number, since it uses less digits than its factorization.

630512105142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982742527.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 630512105142 in words is "six hundred thirty billion, five hundred twelve million, one hundred five thousand, one hundred forty-two".

Divisors: 1 2 3 6 53 106 159 318 1982742469 3965484938 5948227407 11896454814 105085350857 210170701714 315256052571 630512105142