Base | Representation |
---|---|
bin | 11110110110100111101… |
… | …011101000011111001111 |
3 | 21111200200121202212120100 |
4 | 132312213223220133033 |
5 | 234214213410010111 |
6 | 4302004324222143 |
7 | 306116220402060 |
oct | 36664753503717 |
9 | 7450617685510 |
10 | 2120232110031 |
11 | 74820482a682 |
12 | 2a2ab953a953 |
13 | 124c24869249 |
14 | 74896976567 |
15 | 3a243531756 |
hex | 1eda7ae87cf |
2120232110031 has 48 divisors (see below), whose sum is σ = 3505011328000. Its totient is φ = 1209850499520.
The previous prime is 2120232109979. The next prime is 2120232110039. The reversal of 2120232110031 is 1300112320212.
2120232110031 is a `hidden beast` number, since 212 + 0 + 2 + 321 + 100 + 31 = 666.
It is not a de Polignac number, because 2120232110031 - 27 = 2120232109903 is a prime.
It is a super-2 number, since 2×21202321100312 (a number of 25 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2120232109986 and 2120232110013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2120232110039) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 151448970 + ... + 151462968.
Almost surely, 22120232110031 is an apocalyptic number.
2120232110031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
2120232110031 is a deficient number, since it is larger than the sum of its proper divisors (1384779217969).
2120232110031 is a wasteful number, since it uses less digits than its factorization.
2120232110031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17236 (or 17233 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 2120232110031 its reverse (1300112320212), we get a palindrome (3420344430243).
The spelling of 2120232110031 in words is "two trillion, one hundred twenty billion, two hundred thirty-two million, one hundred ten thousand, thirty-one".
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