Base | Representation |
---|---|
bin | 111111100001001… |
… | …0011101001111110 |
3 | 12111112102211100222 |
4 | 1333002103221332 |
5 | 13331103424410 |
6 | 551253221342 |
7 | 103546563236 |
oct | 17702235176 |
9 | 5445384328 |
10 | 2131311230 |
11 | 9a4084744 |
12 | 4b5931852 |
13 | 27c731909 |
14 | 1630bacc6 |
15 | c719e955 |
hex | 7f093a7e |
2131311230 has 8 divisors (see below), whose sum is σ = 3836360232. Its totient is φ = 852524488.
The previous prime is 2131311179. The next prime is 2131311251. The reversal of 2131311230 is 321131312.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×21313112302 = 9084975118248225800, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2131311199 and 2131311208.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106565552 + ... + 106565571.
It is an arithmetic number, because the mean of its divisors is an integer number (479545029).
Almost surely, 22131311230 is an apocalyptic number.
2131311230 is a deficient number, since it is larger than the sum of its proper divisors (1705049002).
2131311230 is a wasteful number, since it uses less digits than its factorization.
2131311230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 213131130.
The product of its (nonzero) digits is 108, while the sum is 17.
The square root of 2131311230 is about 46166.1264348656. The cubic root of 2131311230 is about 1286.9123177095.
Adding to 2131311230 its reverse (321131312), we get a palindrome (2452442542).
The spelling of 2131311230 in words is "two billion, one hundred thirty-one million, three hundred eleven thousand, two hundred thirty".
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