Base | Representation |
---|---|
bin | 100100001101000010… |
… | …000110110101011101 |
3 | 10201100011002101101011 |
4 | 210031002012311131 |
5 | 1114103040034012 |
6 | 25505211015221 |
7 | 2544214060126 |
oct | 441502066535 |
9 | 121304071334 |
10 | 38873361757 |
11 | 15538aaa05a |
12 | 764a73a511 |
13 | 3886835b09 |
14 | 1c4aad704d |
15 | 1027b3d1a7 |
hex | 90d086d5d |
38873361757 has 2 divisors, whose sum is σ = 38873361758. Its totient is φ = 38873361756.
The previous prime is 38873361731. The next prime is 38873361773. The reversal of 38873361757 is 75716337883.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 27324420601 + 11548941156 = 165301^2 + 107466^2 .
It is an emirp because it is prime and its reverse (75716337883) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 38873361757 - 211 = 38873359709 is a prime.
It is a super-2 number, since 2×388733617572 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (38873365757) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19436680878 + 19436680879.
It is an arithmetic number, because the mean of its divisors is an integer number (19436680879).
Almost surely, 238873361757 is an apocalyptic number.
It is an amenable number.
38873361757 is a deficient number, since it is larger than the sum of its proper divisors (1).
38873361757 is an equidigital number, since it uses as much as digits as its factorization.
38873361757 is an evil number, because the sum of its binary digits is even.
The product of its digits is 17781120, while the sum is 58.
The spelling of 38873361757 in words is "thirty-eight billion, eight hundred seventy-three million, three hundred sixty-one thousand, seven hundred fifty-seven".
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