Base | Representation |
---|---|
bin | 11101010111100110001… |
… | …10110101000101000111 |
3 | 10120110122222120011212022 |
4 | 32223303012311011013 |
5 | 113013114324013111 |
6 | 2051324040313355 |
7 | 132622314661514 |
oct | 16536306650507 |
9 | 3513588504768 |
10 | 1009101001031 |
11 | 359a59231752 |
12 | 1436a1a7285b |
13 | 74208950156 |
14 | 36bab03030b |
15 | 1b3b07442db |
hex | eaf31b5147 |
1009101001031 has 2 divisors, whose sum is σ = 1009101001032. Its totient is φ = 1009101001030.
The previous prime is 1009101001001. The next prime is 1009101001081. The reversal of 1009101001031 is 1301001019001.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 1009101001031 - 230 = 1008027259207 is a prime.
It is a super-2 number, since 2×10091010010312 (a number of 25 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1009101001001) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504550500515 + 504550500516.
It is an arithmetic number, because the mean of its divisors is an integer number (504550500516).
Almost surely, 21009101001031 is an apocalyptic number.
1009101001031 is a deficient number, since it is larger than the sum of its proper divisors (1).
1009101001031 is an equidigital number, since it uses as much as digits as its factorization.
1009101001031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 27, while the sum is 17.
The spelling of 1009101001031 in words is "one trillion, nine billion, one hundred one million, one thousand, thirty-one".
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