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30647631630 = 23572115693331
BaseRepresentation
bin11100100010101111…
…011011111100001110
32221002212220222221210
4130202233123330032
51000231243203010
622025045035250
72133322366500
oct344257337416
987085828853
1030647631630
1111aa7875290
125b339b5b26
132b755ca095
1416aa46dd70
15be5904b20
hex722bdbf0e

30647631630 has 192 divisors, whose sum is σ = 93533771520. Its totient is φ = 6355238400.

The previous prime is 30647631589. The next prime is 30647631659. The reversal of 30647631630 is 3613674603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9199065 + ... + 9202395.

It is an arithmetic number, because the mean of its divisors is an integer number (487155060).

Almost surely, 230647631630 is an apocalyptic number.

30647631630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30647631630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46766885760).

30647631630 is an abundant number, since it is smaller than the sum of its proper divisors (62886139890).

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

30647631630 is a wasteful number, since it uses less digits than its factorization.

30647631630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3935 (or 3928 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 39.

The spelling of 30647631630 in words is "thirty billion, six hundred forty-seven million, six hundred thirty-one thousand, six hundred thirty".