| Base | Representation |
|---|---|
| bin | 1001010000011100100001… |
| … | …11000101011011001000000 |
| 3 | 2200002001010012122000210100 |
| 4 | 10220032100320223121000 |
| 5 | 10132004130340331030 |
| 6 | 111143314000002400 |
| 7 | 4200456420546642 |
| oct | 450162070533100 |
| 9 | 80061105560710 |
| 10 | 20356280792640 |
| 11 | 6539060902901 |
| 12 | 2349225300400 |
| 13 | b487871824c0 |
| 14 | 50536bd12892 |
| 15 | 2547a84da360 |
| hex | 128390e2b640 |
20356280792640 has 504 divisors, whose sum is σ = 80099483504040. Its totient is φ = 4716022726656.
The previous prime is 20356280792629. The next prime is 20356280792663. The reversal of 20356280792640 is 4629708265302.
20356280792640 is a `hidden beast` number, since 2 + 0 + 3 + 5 + 628 + 0 + 7 + 9 + 2 + 6 + 4 + 0 = 666.
It can be written as a sum of positive squares in 12 ways, for example, as 1854651764736 + 18501629027904 = 1361856^2 + 4301352^2 .
It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9879496 + ... + 11760824.
It is an arithmetic number, because the mean of its divisors is an integer number (158927546635).
Almost surely, 220356280792640 is an apocalyptic number.
20356280792640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20356280792640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40049741752020).
20356280792640 is an abundant number, since it is smaller than the sum of its proper divisors (59743202711400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20356280792640 is a wasteful number, since it uses less digits than its factorization.
20356280792640 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1881399 (or 1881369 counting only the distinct ones).
The product of its (nonzero) digits is 8709120, while the sum is 54.
The spelling of 20356280792640 in words is "twenty trillion, three hundred fifty-six billion, two hundred eighty million, seven hundred ninety-two thousand, six hundred forty".
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