Base | Representation |
---|---|
bin | 101111100010110110… |
… | …1001101101111011010 |
3 | 100202112121102222101220 |
4 | 1133011231031233122 |
5 | 3133100402241442 |
6 | 114523223152510 |
7 | 10243106661240 |
oct | 1370555155732 |
9 | 322477388356 |
10 | 102101212122 |
11 | 3a334521948 |
12 | 179555a5736 |
13 | 9821c33220 |
14 | 4d28144790 |
15 | 29c8940eec |
hex | 17c5b4dbda |
102101212122 has 64 divisors (see below), whose sum is σ = 251455217664. Its totient is φ = 26913954240.
The previous prime is 102101212069. The next prime is 102101212183. The reversal of 102101212122 is 221212101201.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1037847 + ... + 1131957.
It is an arithmetic number, because the mean of its divisors is an integer number (3928987776).
Almost surely, 2102101212122 is an apocalyptic number.
102101212122 is an abundant number, since it is smaller than the sum of its proper divisors (149354005542).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102101212122 is a wasteful number, since it uses less digits than its factorization.
102101212122 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 96123.
The product of its (nonzero) digits is 32, while the sum is 15.
Adding to 102101212122 its reverse (221212101201), we get a palindrome (323313313323).
The spelling of 102101212122 in words is "one hundred two billion, one hundred one million, two hundred twelve thousand, one hundred twenty-two".
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