Base | Representation |
---|---|
bin | 11100000011111100… |
… | …110000110100100101 |
3 | 2212202212211222120110 |
4 | 130003330300310211 |
5 | 443202021000313 |
6 | 21501512323233 |
7 | 2114450353254 |
oct | 340374606445 |
9 | 85685758513 |
10 | 30131031333 |
11 | 118621aa897 |
12 | 5a0a9a3519 |
13 | 2ac2582130 |
14 | 165b9d679b |
15 | bb53acec3 |
hex | 703f30d25 |
30131031333 has 32 divisors (see below), whose sum is σ = 44327146752. Its totient is φ = 18092390400.
The previous prime is 30131031277. The next prime is 30131031347. The reversal of 30131031333 is 33313013103.
It is not a de Polignac number, because 30131031333 - 212 = 30131027237 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30131033333) 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 31 ways as a sum of consecutive naturals, for example, 212503 + ... + 324683.
It is an arithmetic number, because the mean of its divisors is an integer number (1385223336).
Almost surely, 230131031333 is an apocalyptic number.
It is an amenable number.
30131031333 is a deficient number, since it is larger than the sum of its proper divisors (14196115419).
30131031333 is a wasteful number, since it uses less digits than its factorization.
30131031333 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 112365.
The product of its (nonzero) digits is 729, while the sum is 21.
Adding to 30131031333 its reverse (33313013103), we get a palindrome (63444044436).
The spelling of 30131031333 in words is "thirty billion, one hundred thirty-one million, thirty-one thousand, three hundred thirty-three".
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