Base | Representation |
---|---|
bin | 10010101000001110… |
… | …011010110000101100 |
3 | 1220121222201010000201 |
4 | 102220032122300230 |
5 | 311431032033400 |
6 | 13104445003244 |
7 | 1305450034261 |
oct | 225016326054 |
9 | 56558633021 |
10 | 20002221100 |
11 | 8534806844 |
12 | 3a62853524 |
13 | 1b69ca48b4 |
14 | d7a703268 |
15 | 7c105906a |
hex | 4a839ac2c |
20002221100 has 36 divisors (see below), whose sum is σ = 43420924008. Its totient is φ = 7997920000.
The previous prime is 20002221067. The next prime is 20002221103. The reversal of 20002221100 is 112220002.
It is a Harshad number since it is a multiple of its sum of digits (10).
It is not an unprimeable number, because it can be changed into a prime (20002221103) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244395 + ... + 315805.
It is an arithmetic number, because the mean of its divisors is an integer number (1206136778).
Almost surely, 220002221100 is an apocalyptic number.
20002221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20002221100 is an abundant number, since it is smaller than the sum of its proper divisors (23418702908).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20002221100 is a wasteful number, since it uses less digits than its factorization.
20002221100 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 74226 (or 74219 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 10.
Adding to 20002221100 its reverse (112220002), we get a palindrome (20114441102).
It can be divided in two parts, 200022 and 21100, that added together give a palindrome (221122).
The spelling of 20002221100 in words is "twenty billion, two million, two hundred twenty-one thousand, one hundred".
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