Base | Representation |
---|---|
bin | 10110100010011101… |
… | …01011010001101101 |
3 | 1011020021200212100210 |
4 | 23101032223101231 |
5 | 144240124020023 |
6 | 5320405413033 |
7 | 605566113240 |
oct | 132116532155 |
9 | 34207625323 |
10 | 12100220013 |
11 | 514a293432 |
12 | 241840a179 |
13 | 11aab544cb |
14 | 82b069257 |
15 | 4ac46a593 |
hex | 2d13ab46d |
12100220013 has 16 divisors (see below), whose sum is σ = 18439990400. Its totient is φ = 6913826496.
The previous prime is 12100219981. The next prime is 12100220017. The reversal of 12100220013 is 31002200121.
It is not a de Polignac number, because 12100220013 - 25 = 12100219981 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12100220017) 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, 408831 + ... + 437427.
It is an arithmetic number, because the mean of its divisors is an integer number (1152499400).
Almost surely, 212100220013 is an apocalyptic number.
It is an amenable number.
12100220013 is a deficient number, since it is larger than the sum of its proper divisors (6339770387).
12100220013 is a wasteful number, since it uses less digits than its factorization.
12100220013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 48756.
The product of its (nonzero) digits is 24, while the sum is 12.
Subtracting from 12100220013 its sum of digits (12), we obtain a square (12100220001 = 1100012).
Adding to 12100220013 its reverse (31002200121), we get a palindrome (43102420134).
The spelling of 12100220013 in words is "twelve billion, one hundred million, two hundred twenty thousand, thirteen".
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