Base | Representation |
---|---|
bin | 111000111010011100… |
… | …0101100000110000100 |
3 | 102200110201200110221012 |
4 | 1301310320230012010 |
5 | 4000301321231040 |
6 | 132051440541352 |
7 | 11554504504022 |
oct | 1616470540604 |
9 | 380421613835 |
10 | 122220102020 |
11 | 47919074685 |
12 | 1b82b321858 |
13 | b6aa1366c3 |
14 | 5cb6137712 |
15 | 32a4d43865 |
hex | 1c74e2c184 |
122220102020 has 48 divisors (see below), whose sum is σ = 260288985600. Its totient is φ = 48201283200.
The previous prime is 122220102019. The next prime is 122220102049. The reversal of 122220102020 is 20201022221.
It is a junction number, because it is equal to n+sod(n) for n = 122220101986 and 122220102004.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356201 + ... + 609359.
It is an arithmetic number, because the mean of its divisors is an integer number (5422687200).
Almost surely, 2122220102020 is an apocalyptic number.
122220102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
122220102020 is an abundant number, since it is smaller than the sum of its proper divisors (138068883580).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
122220102020 is a wasteful number, since it uses less digits than its factorization.
122220102020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 253508 (or 253506 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 14.
Adding to 122220102020 its reverse (20201022221), we get a palindrome (142421124241).
The spelling of 122220102020 in words is "one hundred twenty-two billion, two hundred twenty million, one hundred two thousand, twenty".
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