Base | Representation |
---|---|
bin | 1011100011001001… |
… | …0100110001011111 |
3 | 22000001120110221101 |
4 | 2320302110301133 |
5 | 22322122400111 |
6 | 1231344013531 |
7 | 136553160025 |
oct | 27062246137 |
9 | 8001513841 |
10 | 3100200031 |
11 | 1350a89195 |
12 | 7263012a7 |
13 | 3a53980b6 |
14 | 215a4a715 |
15 | 132287bc1 |
hex | b8c94c5f |
3100200031 has 2 divisors, whose sum is σ = 3100200032. Its totient is φ = 3100200030.
The previous prime is 3100200007. The next prime is 3100200049. The reversal of 3100200031 is 1300020013.
It is a strong prime.
It is an emirp because it is prime and its reverse (1300020013) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 3100200031 - 211 = 3100197983 is a prime.
It is a super-2 number, since 2×31002000312 = 19222480464424801922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 3100199990 and 3100200017.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (3100200091) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1550100015 + 1550100016.
It is an arithmetic number, because the mean of its divisors is an integer number (1550100016).
Almost surely, 23100200031 is an apocalyptic number.
3100200031 is a deficient number, since it is larger than the sum of its proper divisors (1).
3100200031 is an equidigital number, since it uses as much as digits as its factorization.
3100200031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 18, while the sum is 10.
The square root of 3100200031 is about 55679.4399307321. The cubic root of 3100200031 is about 1458.1310969961.
Adding to 3100200031 its reverse (1300020013), we get a palindrome (4400220044).
The spelling of 3100200031 in words is "three billion, one hundred million, two hundred thousand, thirty-one".
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