Base | Representation |
---|---|
bin | 11000010001011100… |
… | …01000011111101001 |
3 | 1020122011112012200202 |
4 | 30020232020133221 |
5 | 203141442304113 |
6 | 5553024041545 |
7 | 640632324506 |
oct | 141056103751 |
9 | 36564465622 |
10 | 13031213033 |
11 | 5587864253 |
12 | 26381632b5 |
13 | 12c89acb57 |
14 | 8b89724ad |
15 | 51406a258 |
hex | 308b887e9 |
13031213033 has 2 divisors, whose sum is σ = 13031213034. Its totient is φ = 13031213032.
The previous prime is 13031213029. The next prime is 13031213053. The reversal of 13031213033 is 33031213031.
It is an a-pointer prime, because the next prime (13031213053) can be obtained adding 13031213033 to its sum of digits (20).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 12489627049 + 541585984 = 111757^2 + 23272^2 .
It is a cyclic number.
It is not a de Polignac number, because 13031213033 - 22 = 13031213029 is a prime.
It is a super-2 number, since 2×130312130332 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 13031212996 and 13031213014.
It is not a weakly prime, because it can be changed into another prime (13031213053) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6515606516 + 6515606517.
It is an arithmetic number, because the mean of its divisors is an integer number (6515606517).
Almost surely, 213031213033 is an apocalyptic number.
It is an amenable number.
13031213033 is a deficient number, since it is larger than the sum of its proper divisors (1).
13031213033 is an equidigital number, since it uses as much as digits as its factorization.
13031213033 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 486, while the sum is 20.
Adding to 13031213033 its reverse (33031213031), we get a palindrome (46062426064).
The spelling of 13031213033 in words is "thirteen billion, thirty-one million, two hundred thirteen thousand, thirty-three".
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