Base | Representation |
---|---|
bin | 1001010000000… |
… | …0011000010101 |
3 | 2201000012001011 |
4 | 2110000120111 |
5 | 34413030434 |
6 | 3503332221 |
7 | 650533144 |
oct | 224003025 |
9 | 81005034 |
10 | 38798869 |
11 | 1a9a018a |
12 | 10bb1071 |
13 | 8065c15 |
14 | 521d75b |
15 | 3615e64 |
hex | 2500615 |
38798869 has 2 divisors, whose sum is σ = 38798870. Its totient is φ = 38798868.
The previous prime is 38798849. The next prime is 38798899. The reversal of 38798869 is 96889783.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 38254225 + 544644 = 6185^2 + 738^2 .
It is a cyclic number.
It is not a de Polignac number, because 38798869 - 219 = 38274581 is a prime.
It is a super-2 number, since 2×387988692 = 3010704471358322, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (38798819) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19399434 + 19399435.
It is an arithmetic number, because the mean of its divisors is an integer number (19399435).
Almost surely, 238798869 is an apocalyptic number.
It is an amenable number.
38798869 is a deficient number, since it is larger than the sum of its proper divisors (1).
38798869 is an equidigital number, since it uses as much as digits as its factorization.
38798869 is an evil number, because the sum of its binary digits is even.
The product of its digits is 5225472, while the sum is 58.
The square root of 38798869 is about 6228.8738147437. The cubic root of 38798869 is about 338.5371668159.
The spelling of 38798869 in words is "thirty-eight million, seven hundred ninety-eight thousand, eight hundred sixty-nine".
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