| Base | Representation |
|---|---|
| bin | 10011000001110110… |
| … | …000100000001000100 |
| 3 | 1221201221111101100002 |
| 4 | 103001312010001010 |
| 5 | 313321100402400 |
| 6 | 13215241340432 |
| 7 | 1322216336456 |
| oct | 230166040104 |
| 9 | 57657441302 |
| 10 | 20432044100 |
| 11 | 87353a1166 |
| 12 | 3b62797718 |
| 13 | 1c08058730 |
| 14 | dbb82c2d6 |
| 15 | 7e8b5ded5 |
| hex | 4c1d84044 |
20432044100 has 72 divisors (see below), whose sum is σ = 47957321160. Its totient is φ = 7511086080.
The previous prime is 20432044091. The next prime is 20432044103. The reversal of 20432044100 is 144023402.
It can be written as a sum of positive squares in 12 ways, for example, as 2267473924 + 18164570176 = 47618^2 + 134776^2 .
It is a super-2 number, since 2×204320441002 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is not an unprimeable number, because it can be changed into a prime (20432044103) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 263384 + ... + 332016.
It is an arithmetic number, because the mean of its divisors is an integer number (666073905).
Almost surely, 220432044100 is an apocalyptic number.
20432044100 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 20432044100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23978660580).
20432044100 is an abundant number, since it is smaller than the sum of its proper divisors (27525277060).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20432044100 is a wasteful number, since it uses less digits than its factorization.
20432044100 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 68889 (or 68882 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 20.
Adding to 20432044100 its reverse (144023402), we get a palindrome (20576067502).
The spelling of 20432044100 in words is "twenty billion, four hundred thirty-two million, forty-four thousand, one hundred".
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