Base | Representation |
---|---|
bin | 11011001000011101… |
… | …111101100011100001 |
3 | 2210012100001212220011 |
4 | 123020131331203201 |
5 | 434131033220111 |
6 | 21214503244521 |
7 | 2050642163224 |
oct | 331035754341 |
9 | 83170055804 |
10 | 29133101281 |
11 | 1139a970209 |
12 | 5790749741 |
13 | 29938bb18b |
14 | 15a52675bb |
15 | b5798a021 |
hex | 6c877d8e1 |
29133101281 has 2 divisors, whose sum is σ = 29133101282. Its totient is φ = 29133101280.
The previous prime is 29133101233. The next prime is 29133101287. The reversal of 29133101281 is 18210133192.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 16993468881 + 12139632400 = 130359^2 + 110180^2 .
It is a cyclic number.
It is not a de Polignac number, because 29133101281 - 29 = 29133100769 is a prime.
It is a super-2 number, since 2×291331012812 (a number of 22 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (29133101287) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14566550640 + 14566550641.
It is an arithmetic number, because the mean of its divisors is an integer number (14566550641).
Almost surely, 229133101281 is an apocalyptic number.
It is an amenable number.
29133101281 is a deficient number, since it is larger than the sum of its proper divisors (1).
29133101281 is an equidigital number, since it uses as much as digits as its factorization.
29133101281 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2592, while the sum is 31.
The spelling of 29133101281 in words is "twenty-nine billion, one hundred thirty-three million, one hundred one thousand, two hundred eighty-one".
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