Base | Representation |
---|---|
bin | 11011111100111011… |
… | …010010001001010111 |
3 | 2212110200010200112021 |
4 | 123330323102021113 |
5 | 442431334444111 |
6 | 21442103034011 |
7 | 2111520005440 |
oct | 337473221127 |
9 | 85420120467 |
10 | 30013203031 |
11 | 11801741729 |
12 | 599743b907 |
13 | 2aa4038846 |
14 | 164a0c42c7 |
15 | ba9d85d71 |
hex | 6fced2257 |
30013203031 has 8 divisors (see below), whose sum is σ = 34302357504. Its totient is φ = 25724437080.
The previous prime is 30013203007. The next prime is 30013203037. The reversal of 30013203031 is 13030231003.
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 30013203031 - 27 = 30013202903 is a prime.
It is a super-2 number, since 2×300132030312 (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 = 30013202996 and 30013203014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30013203037) 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, 93306 + ... + 262168.
It is an arithmetic number, because the mean of its divisors is an integer number (4287794688).
Almost surely, 230013203031 is an apocalyptic number.
30013203031 is a deficient number, since it is larger than the sum of its proper divisors (4289154473).
30013203031 is a wasteful number, since it uses less digits than its factorization.
30013203031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 194261.
The product of its (nonzero) digits is 162, while the sum is 16.
Adding to 30013203031 its reverse (13030231003), we get a palindrome (43043434034).
The spelling of 30013203031 in words is "thirty billion, thirteen million, two hundred three thousand, thirty-one".
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