Base | Representation |
---|---|
bin | 11100010101110101… |
… | …001001010011000001 |
3 | 2220112210100012120212 |
4 | 130111311021103001 |
5 | 444310320234241 |
6 | 21551350243505 |
7 | 2125052303345 |
oct | 342565112301 |
9 | 86483305525 |
10 | 30431024321 |
11 | 119a6579a85 |
12 | 5a93356595 |
13 | 2b3c779989 |
14 | 16897a7625 |
15 | bd18b9beb |
hex | 715d494c1 |
30431024321 has 8 divisors (see below), whose sum is σ = 32036380320. Its totient is φ = 28826040672.
The previous prime is 30431024297. The next prime is 30431024347. The reversal of 30431024321 is 12342013403.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30431024321 - 210 = 30431023297 is a prime.
It is a super-2 number, since 2×304310243212 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30431024381) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83261 + ... + 260373.
It is an arithmetic number, because the mean of its divisors is an integer number (4004547540).
Almost surely, 230431024321 is an apocalyptic number.
It is an amenable number.
30431024321 is a deficient number, since it is larger than the sum of its proper divisors (1605355999).
30431024321 is a wasteful number, since it uses less digits than its factorization.
30431024321 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 186175.
The product of its (nonzero) digits is 1728, while the sum is 23.
Adding to 30431024321 its reverse (12342013403), we get a palindrome (42773037724).
The spelling of 30431024321 in words is "thirty billion, four hundred thirty-one million, twenty-four thousand, three hundred twenty-one".
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