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20424634000 = 245310212317
BaseRepresentation
bin10011000001011001…
…110010111010010000
31221201102112220120221
4103001121302322100
5313312201242000
613214414442424
71322066344621
oct230131627220
957642486527
1020424634000
11873119a911
123b60203414
131c06662964
14dba85da48
157e819861a
hex4c1672e90

20424634000 has 40 divisors (see below), whose sum is σ = 49386769848. Its totient is φ = 8169852800.

The previous prime is 20424633997. The next prime is 20424634031. The reversal of 20424634000 is 43642402.

It can be written as a sum of positive squares in 4 ways, for example, as 122943744 + 20301690256 = 11088^2 + 142484^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 5104159 + ... + 5108158.

Almost surely, 220424634000 is an apocalyptic number.

20424634000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20424634000 is an abundant number, since it is smaller than the sum of its proper divisors (28962135848).

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

20424634000 is a wasteful number, since it uses less digits than its factorization.

20424634000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10212340 (or 10212324 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The spelling of 20424634000 in words is "twenty billion, four hundred twenty-four million, six hundred thirty-four thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 10212317 20424634 40849268 51061585 81698536 102123170 163397072 204246340 255307925 408492680 510615850 816985360 1021231700 1276539625 2042463400 2553079250 4084926800 5106158500 10212317000 20424634000