Base | Representation |
---|---|
bin | 100100101010100… |
… | …1100101010111101 |
3 | 10011202000101200002 |
4 | 1021111030222331 |
5 | 10004423344233 |
6 | 322025244045 |
7 | 42326216036 |
oct | 11125145275 |
9 | 3152011602 |
10 | 1230293693 |
11 | 581517952 |
12 | 2a4033625 |
13 | 167b70045 |
14 | b9577a8d |
15 | 730216e8 |
hex | 4954cabd |
1230293693 has 2 divisors, whose sum is σ = 1230293694. Its totient is φ = 1230293692.
The previous prime is 1230293641. The next prime is 1230293707. The reversal of 1230293693 is 3963920321.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 874858084 + 355435609 = 29578^2 + 18853^2 .
It is an emirp because it is prime and its reverse (3963920321) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1230293693 - 26 = 1230293629 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1230293633) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615146846 + 615146847.
It is an arithmetic number, because the mean of its divisors is an integer number (615146847).
Almost surely, 21230293693 is an apocalyptic number.
It is an amenable number.
1230293693 is a deficient number, since it is larger than the sum of its proper divisors (1).
1230293693 is an equidigital number, since it uses as much as digits as its factorization.
1230293693 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 52488, while the sum is 38.
The square root of 1230293693 is about 35075.5426615184. The cubic root of 1230293693 is about 1071.5265406281.
The spelling of 1230293693 in words is "one billion, two hundred thirty million, two hundred ninety-three thousand, six hundred ninety-three".
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