Base | Representation |
---|---|
bin | 10100011111010111… |
… | …001001111001101000 |
3 | 2002210021202121021100 |
4 | 110133113021321220 |
5 | 330024224000130 |
6 | 14035045441400 |
7 | 1406130262155 |
oct | 243727117150 |
9 | 62707677240 |
10 | 22001000040 |
11 | 936aa99a68 |
12 | 4320110260 |
13 | 20c8112226 |
14 | 10c9d6122c |
15 | 88b779c60 |
hex | 51f5c9e68 |
22001000040 has 96 divisors (see below), whose sum is σ = 72510422400. Its totient is φ = 5784293760.
The previous prime is 22001000023. The next prime is 22001000059. The reversal of 22001000040 is 4000010022.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a junction number, because it is equal to n+sod(n) for n = 22000999986 and 22001000031.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 404820 + ... + 455939.
It is an arithmetic number, because the mean of its divisors is an integer number (755316900).
Almost surely, 222001000040 is an apocalyptic number.
22001000040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
22001000040 is an abundant number, since it is smaller than the sum of its proper divisors (50509422360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
22001000040 is a wasteful number, since it uses less digits than its factorization.
22001000040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 860847 (or 860840 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 9.
Adding to 22001000040 its reverse (4000010022), we get a palindrome (26001010062).
The spelling of 22001000040 in words is "twenty-two billion, one million, forty", and thus it is an aban number and an uban number.
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