Base | Representation |
---|---|
bin | 1110001111010001010010… |
… | …00110000000110110110101 |
3 | 11002212022011111102102221101 |
4 | 13013220221012000312311 |
5 | 13100444412230430234 |
6 | 150332024133050101 |
7 | 6411100536313555 |
oct | 707505106006665 |
9 | 132768144372841 |
10 | 31311001030069 |
11 | 9a81a14894a32 |
12 | 3618346a86931 |
13 | 14617cb731b27 |
14 | 7a36639d3165 |
15 | 39470e8e3814 |
hex | 1c7a29180db5 |
31311001030069 has 2 divisors, whose sum is σ = 31311001030070. Its totient is φ = 31311001030068.
The previous prime is 31311001030063. The next prime is 31311001030117. The reversal of 31311001030069 is 96003010011313.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 31304729973969 + 6271056100 = 5595063^2 + 79190^2 .
It is a cyclic number.
It is not a de Polignac number, because 31311001030069 - 233 = 31302411095477 is a prime.
It is a super-2 number, since 2×313110010300692 (a number of 28 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (31311001030063) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15655500515034 + 15655500515035.
It is an arithmetic number, because the mean of its divisors is an integer number (15655500515035).
Almost surely, 231311001030069 is an apocalyptic number.
It is an amenable number.
31311001030069 is a deficient number, since it is larger than the sum of its proper divisors (1).
31311001030069 is an equidigital number, since it uses as much as digits as its factorization.
31311001030069 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1458, while the sum is 28.
The spelling of 31311001030069 in words is "thirty-one trillion, three hundred eleven billion, one million, thirty thousand, sixty-nine".
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