Base | Representation |
---|---|
bin | 111000010110000101… |
… | …0011000010111000100 |
3 | 102120022200212000202001 |
4 | 1300230022120113010 |
5 | 3440302000044022 |
6 | 131330413555044 |
7 | 11512331025040 |
oct | 1605412302704 |
9 | 376280760661 |
10 | 121000003012 |
11 | 47352390199 |
12 | 1b54a7a5a84 |
13 | b544425a25 |
14 | 5bdc095020 |
15 | 3232b87b27 |
hex | 1c2c2985c4 |
121000003012 has 48 divisors (see below), whose sum is σ = 256373994240. Its totient is φ = 48780306432.
The previous prime is 121000002911. The next prime is 121000003021. The reversal of 121000003012 is 210300000121.
It is a self number, because there is not a number n which added to its sum of digits gives 121000003012.
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, 823689 + ... + 959407.
It is an arithmetic number, because the mean of its divisors is an integer number (5341124880).
Almost surely, 2121000003012 is an apocalyptic number.
It is an amenable number.
121000003012 is an abundant number, since it is smaller than the sum of its proper divisors (135373991228).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121000003012 is a wasteful number, since it uses less digits than its factorization.
121000003012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 137620 (or 137618 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 10.
Adding to 121000003012 its reverse (210300000121), we get a palindrome (331300003133).
The spelling of 121000003012 in words is "one hundred twenty-one billion, three thousand, twelve".
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