Base | Representation |
---|---|
bin | 100100000010000001… |
… | …110001010010111111 |
3 | 10200212021122211012121 |
4 | 210002001301102333 |
5 | 1113213303133114 |
6 | 25435013343411 |
7 | 2536512505111 |
oct | 440201612277 |
9 | 120767584177 |
10 | 38688724159 |
11 | 1545385a0a8 |
12 | 75b8937b67 |
13 | 38574ca0b7 |
14 | 1c303933b1 |
15 | 101681aa24 |
hex | 9020714bf |
38688724159 has 2 divisors, whose sum is σ = 38688724160. Its totient is φ = 38688724158.
The previous prime is 38688724157. The next prime is 38688724177. The reversal of 38688724159 is 95142788683.
It is a weak prime.
It is an emirp because it is prime and its reverse (95142788683) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 38688724159 - 21 = 38688724157 is a prime.
Together with 38688724157, it forms a pair of twin primes.
It is a junction number, because it is equal to n+sod(n) for n = 38688724097 and 38688724106.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (38688724157) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19344362079 + 19344362080.
It is an arithmetic number, because the mean of its divisors is an integer number (19344362080).
Almost surely, 238688724159 is an apocalyptic number.
38688724159 is a deficient number, since it is larger than the sum of its proper divisors (1).
38688724159 is an equidigital number, since it uses as much as digits as its factorization.
38688724159 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 23224320, while the sum is 61.
The spelling of 38688724159 in words is "thirty-eight billion, six hundred eighty-eight million, seven hundred twenty-four thousand, one hundred fifty-nine".
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