Base | Representation |
---|---|
bin | 11011111101111111… |
… | …111110011110000101 |
3 | 2212111221000112221212 |
4 | 123331333332132011 |
5 | 443000442212443 |
6 | 21443545021205 |
7 | 2112126035123 |
oct | 337577763605 |
9 | 85457015855 |
10 | 30031210373 |
11 | 1181092092a |
12 | 59a1484805 |
13 | 2aa79a1c88 |
14 | 164c650913 |
15 | bab741618 |
hex | 6fdffe785 |
30031210373 has 2 divisors, whose sum is σ = 30031210374. Its totient is φ = 30031210372.
The previous prime is 30031210301. The next prime is 30031210409. The reversal of 30031210373 is 37301213003.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 29976420769 + 54789604 = 173137^2 + 7402^2 .
It is a cyclic number.
It is not a de Polignac number, because 30031210373 - 216 = 30031144837 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30031210873) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15015605186 + 15015605187.
It is an arithmetic number, because the mean of its divisors is an integer number (15015605187).
Almost surely, 230031210373 is an apocalyptic number.
It is an amenable number.
30031210373 is a deficient number, since it is larger than the sum of its proper divisors (1).
30031210373 is an equidigital number, since it uses as much as digits as its factorization.
30031210373 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1134, while the sum is 23.
Adding to 30031210373 its reverse (37301213003), we get a palindrome (67332423376).
The spelling of 30031210373 in words is "thirty billion, thirty-one million, two hundred ten thousand, three hundred seventy-three".
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