Base | Representation |
---|---|
bin | 11100000010100010… |
… | …001101000000011111 |
3 | 2212201020011212220000 |
4 | 130002202031000133 |
5 | 443124431313204 |
6 | 21455303425343 |
7 | 2114041520403 |
oct | 340242150037 |
9 | 85636155800 |
10 | 30107291679 |
11 | 1184a865943 |
12 | 5a02a55253 |
13 | 2aba68c7ba |
14 | 16587b7103 |
15 | bb326e039 |
hex | 70288d01f |
30107291679 has 20 divisors (see below), whose sum is σ = 45037729440. Its totient is φ = 20043611892.
The previous prime is 30107291651. The next prime is 30107291689. The reversal of 30107291679 is 97619270103.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It is an ABA number since it can be written as A⋅BA, here for A=3, B=2157.
It is not a de Polignac number, because 30107291679 - 25 = 30107291647 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30107291689) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 41873482 + ... + 41874200.
It is an arithmetic number, because the mean of its divisors is an integer number (2251886472).
Almost surely, 230107291679 is an apocalyptic number.
30107291679 is a deficient number, since it is larger than the sum of its proper divisors (14930437761).
30107291679 is an frugal number, since it uses more digits than its factorization.
30107291679 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2169 (or 722 counting only the distinct ones).
The product of its (nonzero) digits is 142884, while the sum is 45.
The spelling of 30107291679 in words is "thirty billion, one hundred seven million, two hundred ninety-one thousand, six hundred seventy-nine".
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