| Base | Representation |
|---|---|
| bin | 1011101010010000… |
| … | …0111011111001111 |
| 3 | 22002010201000000012 |
| 4 | 2322210013133033 |
| 5 | 22402241430111 |
| 6 | 1234331223435 |
| 7 | 140364546662 |
| oct | 27244073717 |
| 9 | 8063630005 |
| 10 | 3130030031 |
| 11 | 1366902987 |
| 12 | 7342a7b7b |
| 13 | 3ab61089b |
| 14 | 2199b36d9 |
| 15 | 134bcb48b |
| hex | ba9077cf |
3130030031 has 4 divisors (see below), whose sum is σ = 3130142472. Its totient is φ = 3129917592.
The previous prime is 3130030027. The next prime is 3130030039. The reversal of 3130030031 is 1300300313.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1300300313 = 13 ⋅100023101.
It is a cyclic number.
It is not a de Polignac number, because 3130030031 - 22 = 3130030027 is a prime.
It is a super-2 number, since 2×31300300312 = 19594175989923721922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 3130029988 and 3130030015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3130030039) by changing a digit.
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, 19805 + ... + 81561.
It is an arithmetic number, because the mean of its divisors is an integer number (782535618).
Almost surely, 23130030031 is an apocalyptic number.
3130030031 is a deficient number, since it is larger than the sum of its proper divisors (112441).
3130030031 is an equidigital number, since it uses as much as digits as its factorization.
3130030031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 112440.
The product of its (nonzero) digits is 81, while the sum is 14.
The square root of 3130030031 is about 55946.6713129566. The cubic root of 3130030031 is about 1462.7928699379.
Adding to 3130030031 its reverse (1300300313), we get a palindrome (4430330344).
It can be divided in two parts, 3 and 130030031, that multiplied together give a palindrome (390090093).
The spelling of 3130030031 in words is "three billion, one hundred thirty million, thirty thousand, thirty-one".
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