Base | Representation |
---|---|
bin | 11100000010010001… |
… | …111101010100101011 |
3 | 2212200221011112021000 |
4 | 130002101331110223 |
5 | 443122334030011 |
6 | 21455032250043 |
7 | 2113660362663 |
oct | 340221752453 |
9 | 85627145230 |
10 | 30103033131 |
11 | 11848417386 |
12 | 5a01540923 |
13 | 2ab982b352 |
14 | 1657dc91a3 |
15 | bb2bcc356 |
hex | 70247d52b |
30103033131 has 16 divisors (see below), whose sum is σ = 44651307520. Its totient is φ = 20044289160.
The previous prime is 30103033117. The next prime is 30103033157. The reversal of 30103033131 is 13133030103.
30103033131 is a `hidden beast` number, since 301 + 0 + 3 + 0 + 331 + 31 = 666.
It is not a de Polignac number, because 30103033131 - 27 = 30103033003 is a prime.
It is a super-2 number, since 2×301030331312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30103033031) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 655135 + ... + 699576.
It is an arithmetic number, because the mean of its divisors is an integer number (2790706720).
Almost surely, 230103033131 is an apocalyptic number.
30103033131 is a deficient number, since it is larger than the sum of its proper divisors (14548274389).
30103033131 is a wasteful number, since it uses less digits than its factorization.
30103033131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1355543 (or 1355537 counting only the distinct ones).
The product of its (nonzero) digits is 243, while the sum is 18.
Adding to 30103033131 its reverse (13133030103), we get a palindrome (43236063234).
The spelling of 30103033131 in words is "thirty billion, one hundred three million, thirty-three thousand, one hundred thirty-one".
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