Base | Representation |
---|---|
bin | 10010101000101100… |
… | …001000111000111110 |
3 | 1220122112100221102210 |
4 | 102220230020320332 |
5 | 311440030342342 |
6 | 13105324001250 |
7 | 1305603204024 |
oct | 225054107076 |
9 | 56575327383 |
10 | 20010012222 |
11 | 8539148392 |
12 | 3a65390226 |
13 | 1b6b7a1c25 |
14 | d7b770714 |
15 | 7c1a9779c |
hex | 4a8b08e3e |
20010012222 has 32 divisors (see below), whose sum is σ = 42599692800. Its totient is φ = 6247948608.
The previous prime is 20010012221. The next prime is 20010012293. The reversal of 20010012222 is 22221001002.
It is a junction number, because it is equal to n+sod(n) for n = 20010012198 and 20010012207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20010012221) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 975958 + ... + 996249.
It is an arithmetic number, because the mean of its divisors is an integer number (1331240400).
Almost surely, 220010012222 is an apocalyptic number.
20010012222 is an abundant number, since it is smaller than the sum of its proper divisors (22589680578).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20010012222 is a wasteful number, since it uses less digits than its factorization.
20010012222 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1972320.
The product of its (nonzero) digits is 32, while the sum is 12.
Adding to 20010012222 its reverse (22221001002), we get a palindrome (42231013224).
The spelling of 20010012222 in words is "twenty billion, ten million, twelve thousand, two hundred twenty-two".
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