Base | Representation |
---|---|
bin | 11100011110100110… |
… | …001000010011000101 |
3 | 2220221001001120012002 |
4 | 130132212020103011 |
5 | 1000110442124023 |
6 | 22014122235045 |
7 | 2131516263032 |
oct | 343646102305 |
9 | 86831046162 |
10 | 30578083013 |
11 | 11a71592395 |
12 | 5b14655a85 |
13 | 2b64088b5a |
14 | 16a1128389 |
15 | bde767b28 |
hex | 71e9884c5 |
30578083013 has 2 divisors, whose sum is σ = 30578083014. Its totient is φ = 30578083012.
The previous prime is 30578083001. The next prime is 30578083027. The reversal of 30578083013 is 31038087503.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 28015394884 + 2562688129 = 167378^2 + 50623^2 .
It is a cyclic number.
It is not a de Polignac number, because 30578083013 - 26 = 30578082949 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30578083043) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15289041506 + 15289041507.
It is an arithmetic number, because the mean of its divisors is an integer number (15289041507).
Almost surely, 230578083013 is an apocalyptic number.
It is an amenable number.
30578083013 is a deficient number, since it is larger than the sum of its proper divisors (1).
30578083013 is an equidigital number, since it uses as much as digits as its factorization.
30578083013 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 60480, while the sum is 38.
The spelling of 30578083013 in words is "thirty billion, five hundred seventy-eight million, eighty-three thousand, thirteen".
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