Base | Representation |
---|---|
bin | 100011011111011010… |
… | …111011000110101001 |
3 | 10122100211010211200100 |
4 | 203133122323012221 |
5 | 1111021134142434 |
6 | 25301233100013 |
7 | 2516232431112 |
oct | 433732730651 |
9 | 118324124610 |
10 | 38108115369 |
11 | 15186046125 |
12 | 74763b7609 |
13 | 37941307bc |
14 | 1bb7217209 |
15 | ed087d699 |
hex | 8df6bb1a9 |
38108115369 has 9 divisors (see below), whose sum is σ = 55045901469. Its totient is φ = 25405019820.
The previous prime is 38108115361. The next prime is 38108115403. The reversal of 38108115369 is 96351180183.
It is a happy number.
The square root of 38108115369 is 195213.
It is a perfect power (a square), and thus also a powerful number.
38108115369 is a `hidden beast` number, since 3 + 8 + 108 + 1 + 1 + 536 + 9 = 666.
It is a tau number, because it is divible by the number of its divisors (9).
It is not a de Polignac number, because 38108115369 - 23 = 38108115361 is a prime.
It is a super-2 number, since 2×381081153692 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (38108115361) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 553104 + ... + 618174.
Almost surely, 238108115369 is an apocalyptic number.
38108115369 is the 195213-rd square number.
38108115369 is the 97607-th centered octagonal number.
It is an amenable number.
38108115369 is a deficient number, since it is larger than the sum of its proper divisors (16937786100).
38108115369 is an frugal number, since it uses more digits than its factorization.
38108115369 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 130148 (or 65074 counting only the distinct ones).
The product of its (nonzero) digits is 155520, while the sum is 45.
The spelling of 38108115369 in words is "thirty-eight billion, one hundred eight million, one hundred fifteen thousand, three hundred sixty-nine".
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