Base | Representation |
---|---|
bin | 11110100101110000001… |
… | …111001000000101011100 |
3 | 21102221221111110001002000 |
4 | 132211300033020011130 |
5 | 233420121214134322 |
6 | 4245411310202300 |
7 | 304605354235233 |
oct | 36456017100534 |
9 | 7387844401060 |
10 | 2102122021212 |
11 | 740561095924 |
12 | 29b4a44b3390 |
13 | 1232c98a2065 |
14 | 73a5968db1a |
15 | 39a3367e3ac |
hex | 1e9703c815c |
2102122021212 has 24 divisors (see below), whose sum is σ = 5449945981200. Its totient is φ = 700707340368.
The previous prime is 2102122021199. The next prime is 2102122021229. The reversal of 2102122021212 is 2121202212012.
It is a happy number.
2102122021212 is a `hidden beast` number, since 210 + 2 + 1 + 220 + 21 + 212 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
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 7 ways as a sum of consecutive naturals, for example, 9732046287 + ... + 9732046502.
It is an arithmetic number, because the mean of its divisors is an integer number (227081082550).
Almost surely, 22102122021212 is an apocalyptic number.
It is an amenable number.
2102122021212 is an abundant number, since it is smaller than the sum of its proper divisors (3347823959988).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2102122021212 is a wasteful number, since it uses less digits than its factorization.
2102122021212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19464092802 (or 19464092794 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 18.
Adding to 2102122021212 its reverse (2121202212012), we get a palindrome (4223324233224).
The spelling of 2102122021212 in words is "two trillion, one hundred two billion, one hundred twenty-two million, twenty-one thousand, two hundred twelve".
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