Base | Representation |
---|---|
bin | 110000000100100001… |
… | …1100110100101100011 |
3 | 100212110100121222222202 |
4 | 1200021003212211203 |
5 | 3142404133421111 |
6 | 115231305523415 |
7 | 10313110223051 |
oct | 1401103464543 |
9 | 325410558882 |
10 | 103231154531 |
11 | 3a86432834a |
12 | 1800baa356b |
13 | 99720688bb |
14 | 4dd42391d1 |
15 | 2a42c3db3b |
hex | 18090e6963 |
103231154531 has 2 divisors, whose sum is σ = 103231154532. Its totient is φ = 103231154530.
The previous prime is 103231154519. The next prime is 103231154573. The reversal of 103231154531 is 135451132301.
It is a weak prime.
It is an emirp because it is prime and its reverse (135451132301) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 103231154531 - 210 = 103231153507 is a prime.
It is a super-2 number, since 2×1032311545312 (a number of 23 digits) contains 22 as substring.
It is a Sophie Germain prime.
It is a junction number, because it is equal to n+sod(n) for n = 103231154494 and 103231154503.
It is not a weakly prime, because it can be changed into another prime (103231154581) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51615577265 + 51615577266.
It is an arithmetic number, because the mean of its divisors is an integer number (51615577266).
Almost surely, 2103231154531 is an apocalyptic number.
103231154531 is a deficient number, since it is larger than the sum of its proper divisors (1).
103231154531 is an equidigital number, since it uses as much as digits as its factorization.
103231154531 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 5400, while the sum is 29.
Adding to 103231154531 its reverse (135451132301), we get a palindrome (238682286832).
The spelling of 103231154531 in words is "one hundred three billion, two hundred thirty-one million, one hundred fifty-four thousand, five hundred thirty-one".
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