Base | Representation |
---|---|
bin | 101111100000011011… |
… | …1111000011001100100 |
3 | 100202022221212011221220 |
4 | 1133000313320121210 |
5 | 3132414122402322 |
6 | 114511205140340 |
7 | 10241103505431 |
oct | 1370067703144 |
9 | 322287764856 |
10 | 102020122212 |
11 | 3a2a2776898 |
12 | 179323ba6b0 |
13 | 980b1b0a28 |
14 | 4d1b476b88 |
15 | 29c177455c |
hex | 17c0df8664 |
102020122212 has 48 divisors (see below), whose sum is σ = 240776686080. Its totient is φ = 33616920832.
The previous prime is 102020122153. The next prime is 102020122231. The reversal of 102020122212 is 212221020201.
It is a junction number, because it is equal to n+sod(n) for n = 102020122191 and 102020122200.
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 15 ways as a sum of consecutive naturals, for example, 6450298 + ... + 6466094.
It is an arithmetic number, because the mean of its divisors is an integer number (5016180960).
Almost surely, 2102020122212 is an apocalyptic number.
102020122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
102020122212 is an abundant number, since it is smaller than the sum of its proper divisors (138756563868).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102020122212 is a wasteful number, since it uses less digits than its factorization.
102020122212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21940 (or 21938 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 15.
Adding to 102020122212 its reverse (212221020201), we get a palindrome (314241142413).
The spelling of 102020122212 in words is "one hundred two billion, twenty million, one hundred twenty-two thousand, two hundred twelve".
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