Base | Representation |
---|---|
bin | 11011100011001… |
… | …00111010010001 |
3 | 121002212002200002 |
4 | 31301210322101 |
5 | 433130200144 |
6 | 34533135345 |
7 | 5504214035 |
oct | 1561447221 |
9 | 532762602 |
10 | 231100049 |
11 | 1094a4984 |
12 | 6548a555 |
13 | 38b55bbb |
14 | 2299a1c5 |
15 | 1544e14e |
hex | dc64e91 |
231100049 has 2 divisors, whose sum is σ = 231100050. Its totient is φ = 231100048.
The previous prime is 231100031. The next prime is 231100061. The reversal of 231100049 is 940001132.
231100049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 205779025 + 25321024 = 14345^2 + 5032^2 .
It is a cyclic number.
It is not a de Polignac number, because 231100049 - 220 = 230051473 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 231100049.
It is not a weakly prime, because it can be changed into another prime (231100069) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115550024 + 115550025.
It is an arithmetic number, because the mean of its divisors is an integer number (115550025).
Almost surely, 2231100049 is an apocalyptic number.
It is an amenable number.
231100049 is a deficient number, since it is larger than the sum of its proper divisors (1).
231100049 is an equidigital number, since it uses as much as digits as its factorization.
231100049 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 216, while the sum is 20.
The square root of 231100049 is about 15201.9751677208. The cubic root of 231100049 is about 613.6678141383.
The spelling of 231100049 in words is "two hundred thirty-one million, one hundred thousand, forty-nine".
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