Base | Representation |
---|---|
bin | 1011110000101000010101… |
… | …0100001000111100101101 |
3 | 1200210002211002010122002010 |
4 | 2330022011110020330231 |
5 | 3143321310040211341 |
6 | 43300000040151433 |
7 | 2503111432241400 |
oct | 274120524107455 |
9 | 50702732118063 |
10 | 12930088210221 |
11 | 413568a787336 |
12 | 1549b30468579 |
13 | 72a3c08b7180 |
14 | 329b69011d37 |
15 | 17651bb9c716 |
hex | bc285508f2d |
12930088210221 has 96 divisors (see below), whose sum is σ = 21707982202368. Its totient is φ = 6785404940160.
The previous prime is 12930088210147. The next prime is 12930088210223. The reversal of 12930088210221 is 12201288003921.
It is not a de Polignac number, because 12930088210221 - 210 = 12930088209197 is a prime.
It is a super-2 number, since 2×129300882102212 (a number of 27 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a self number, because there is not a number n which added to its sum of digits gives 12930088210221.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12930088210223) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1623766986 + ... + 1623774948.
It is an arithmetic number, because the mean of its divisors is an integer number (226124814608).
Almost surely, 212930088210221 is an apocalyptic number.
It is an amenable number.
12930088210221 is a deficient number, since it is larger than the sum of its proper divisors (8777893992147).
12930088210221 is a wasteful number, since it uses less digits than its factorization.
12930088210221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12231 (or 12224 counting only the distinct ones).
The product of its (nonzero) digits is 27648, while the sum is 39.
The spelling of 12930088210221 in words is "twelve trillion, nine hundred thirty billion, eighty-eight million, two hundred ten thousand, two hundred twenty-one".
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