Base | Representation |
---|---|
bin | 111101010110111… |
… | …011110100110101 |
3 | 2122202001002001011 |
4 | 331112323310311 |
5 | 4102013004024 |
6 | 250052032221 |
7 | 34336642312 |
oct | 7526736465 |
9 | 2582032034 |
10 | 1029422389 |
11 | 48909a306 |
12 | 248902671 |
13 | 13536c298 |
14 | 9aa09d09 |
15 | 60594094 |
hex | 3d5bbd35 |
1029422389 has 2 divisors, whose sum is σ = 1029422390. Its totient is φ = 1029422388.
The previous prime is 1029422353. The next prime is 1029422393. The reversal of 1029422389 is 9832249201.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 651780900 + 377641489 = 25530^2 + 19433^2 .
It is a cyclic number.
It is not a de Polignac number, because 1029422389 - 217 = 1029291317 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1029422789) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514711194 + 514711195.
It is an arithmetic number, because the mean of its divisors is an integer number (514711195).
Almost surely, 21029422389 is an apocalyptic number.
It is an amenable number.
1029422389 is a deficient number, since it is larger than the sum of its proper divisors (1).
1029422389 is an equidigital number, since it uses as much as digits as its factorization.
1029422389 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 62208, while the sum is 40.
The square root of 1029422389 is about 32084.6129632258. The cubic root of 1029422389 is about 1009.7128187205.
The spelling of 1029422389 in words is "one billion, twenty-nine million, four hundred twenty-two thousand, three hundred eighty-nine".
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