Base | Representation |
---|---|
bin | 11110100101110010111011 |
3 | 120002102011212 |
4 | 132211302323 |
5 | 4023103011 |
6 | 443513335 |
7 | 125106251 |
oct | 36456273 |
9 | 16072155 |
10 | 8019131 |
11 | 458798a |
12 | 282884b |
13 | 187a063 |
14 | 10ca5d1 |
15 | a8608b |
hex | 7a5cbb |
8019131 has 2 divisors, whose sum is σ = 8019132. Its totient is φ = 8019130.
The previous prime is 8019119. The next prime is 8019169. The reversal of 8019131 is 1319108.
8019131 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 8019131 - 210 = 8018107 is a prime.
It is a super-2 number, since 2×80191312 = 128612923990322, which contains 22 as substring.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 8019097 and 8019106.
It is not a weakly prime, because it can be changed into another prime (8019181) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4009565 + 4009566.
It is an arithmetic number, because the mean of its divisors is an integer number (4009566).
Almost surely, 28019131 is an apocalyptic number.
8019131 is a deficient number, since it is larger than the sum of its proper divisors (1).
8019131 is an equidigital number, since it uses as much as digits as its factorization.
8019131 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 216, while the sum is 23.
The square root of 8019131 is about 2831.8070202611. The cubic root of 8019131 is about 200.1592980869.
Subtracting from 8019131 its sum of digits (23), we obtain a palindrome (8019108).
The spelling of 8019131 in words is "eight million, nineteen thousand, one hundred thirty-one".
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