Base | Representation |
---|---|
bin | 11100000010001111… |
… | …010001111010010111 |
3 | 2212200212211212011022 |
4 | 130002033101322113 |
5 | 443122144043111 |
6 | 21455005231355 |
7 | 2113651410023 |
oct | 340217217227 |
9 | 85625755138 |
10 | 30102331031 |
11 | 11847a87933 |
12 | 5a0126255b |
13 | 2ab96438c6 |
14 | 1657c85383 |
15 | bb2ade2db |
hex | 7023d1e97 |
30102331031 has 2 divisors, whose sum is σ = 30102331032. Its totient is φ = 30102331030.
The previous prime is 30102331019. The next prime is 30102331037. The reversal of 30102331031 is 13013320103.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 30102331031 - 226 = 30035222167 is a prime.
It is a super-2 number, since 2×301023310312 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30102331037) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15051165515 + 15051165516.
It is an arithmetic number, because the mean of its divisors is an integer number (15051165516).
Almost surely, 230102331031 is an apocalyptic number.
30102331031 is a deficient number, since it is larger than the sum of its proper divisors (1).
30102331031 is an equidigital number, since it uses as much as digits as its factorization.
30102331031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 162, while the sum is 17.
Adding to 30102331031 its reverse (13013320103), we get a palindrome (43115651134).
The spelling of 30102331031 in words is "thirty billion, one hundred two million, three hundred thirty-one thousand, thirty-one".
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