Base | Representation |
---|---|
bin | 1011000000010100100000… |
… | …0001110101001001010101 |
3 | 1120211202112221210210112110 |
4 | 2300011020001311021111 |
5 | 3041222032103442323 |
6 | 41422420143341233 |
7 | 2356130351065320 |
oct | 260051001651125 |
9 | 46752487723473 |
10 | 12100131312213 |
11 | 394570074879a |
12 | 14351055b1819 |
13 | 69a064487159 |
14 | 2db9142617b7 |
15 | 15eb43947793 |
hex | b0148075255 |
12100131312213 has 16 divisors (see below), whose sum is σ = 19033079054336. Its totient is φ = 6691316854320.
The previous prime is 12100131312197. The next prime is 12100131312223. The reversal of 12100131312213 is 31221313100121.
It is not a de Polignac number, because 12100131312213 - 24 = 12100131312197 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 12100131312213.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12100131312223) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9293494981 + ... + 9293496282.
It is an arithmetic number, because the mean of its divisors is an integer number (1189567440896).
Almost surely, 212100131312213 is an apocalyptic number.
It is an amenable number.
12100131312213 is a deficient number, since it is larger than the sum of its proper divisors (6932947742123).
12100131312213 is a wasteful number, since it uses less digits than its factorization.
12100131312213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18586991304.
The product of its (nonzero) digits is 216, while the sum is 21.
Adding to 12100131312213 its reverse (31221313100121), we get a palindrome (43321444412334).
The spelling of 12100131312213 in words is "twelve trillion, one hundred billion, one hundred thirty-one million, three hundred twelve thousand, two hundred thirteen".
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