Base | Representation |
---|---|
bin | 11011111101010110… |
… | …010111100100011011 |
3 | 2212111011111102000221 |
4 | 123331112113210123 |
5 | 442440144200011 |
6 | 21442515140511 |
7 | 2111634236440 |
oct | 337526274433 |
9 | 85434442027 |
10 | 30020303131 |
11 | 11805751085 |
12 | 59998a4737 |
13 | 2aa56534a0 |
14 | 164b0119c7 |
15 | baa7d9971 |
hex | 6fd59791b |
30020303131 has 8 divisors (see below), whose sum is σ = 36948065504. Its totient is φ = 23752327680.
The previous prime is 30020303113. The next prime is 30020303191. The reversal of 30020303131 is 13130302003.
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 30020303131 - 211 = 30020301083 is a prime.
It is a super-2 number, since 2×300203031312 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30020303101) 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, 164946630 + ... + 164946811.
It is an arithmetic number, because the mean of its divisors is an integer number (4618508188).
Almost surely, 230020303131 is an apocalyptic number.
30020303131 is a deficient number, since it is larger than the sum of its proper divisors (6927762373).
30020303131 is a wasteful number, since it uses less digits than its factorization.
30020303131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 329893461.
The product of its (nonzero) digits is 162, while the sum is 16.
Adding to 30020303131 its reverse (13130302003), we get a palindrome (43150605134).
The spelling of 30020303131 in words is "thirty billion, twenty million, three hundred three thousand, one hundred thirty-one".
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