Base | Representation |
---|---|
bin | 11011111110000111… |
… | …111111001011011111 |
3 | 2212112001222020200210 |
4 | 123332013333023133 |
5 | 443002011413211 |
6 | 21444102023503 |
7 | 2112152632545 |
oct | 337607771337 |
9 | 85461866623 |
10 | 30033310431 |
11 | 11812025713 |
12 | 59a2117b93 |
13 | 2aa8258b07 |
14 | 164ca39d95 |
15 | baba089a6 |
hex | 6fe1ff2df |
30033310431 has 8 divisors (see below), whose sum is σ = 42152014720. Its totient is φ = 18968406552.
The previous prime is 30033310427. The next prime is 30033310459. The reversal of 30033310431 is 13401333003.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30033310431 - 22 = 30033310427 is a prime.
It is a super-2 number, since 2×300333104312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30033310398 and 30033310407.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30033310481) 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, 263450035 + ... + 263450148.
It is an arithmetic number, because the mean of its divisors is an integer number (5269001840).
Almost surely, 230033310431 is an apocalyptic number.
30033310431 is a deficient number, since it is larger than the sum of its proper divisors (12118704289).
30033310431 is a wasteful number, since it uses less digits than its factorization.
30033310431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 526900205.
The product of its (nonzero) digits is 972, while the sum is 21.
Adding to 30033310431 its reverse (13401333003), we get a palindrome (43434643434).
The spelling of 30033310431 in words is "thirty billion, thirty-three million, three hundred ten thousand, four hundred thirty-one".
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