Base | Representation |
---|---|
bin | 1001001011001… |
… | …1111010100101 |
3 | 2200102021102011 |
4 | 2102303322211 |
5 | 34323020134 |
6 | 3452514221 |
7 | 645060055 |
oct | 222637245 |
9 | 80367364 |
10 | 38485669 |
11 | 1a7a6942 |
12 | 10a7b971 |
13 | 7c864b1 |
14 | 517b565 |
15 | 35a3264 |
hex | 24b3ea5 |
38485669 has 2 divisors, whose sum is σ = 38485670. Its totient is φ = 38485668.
The previous prime is 38485631. The next prime is 38485679. The reversal of 38485669 is 96658483.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 25250625 + 13235044 = 5025^2 + 3638^2 .
It is an emirp because it is prime and its reverse (96658483) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 38485669 - 29 = 38485157 is a prime.
It is a super-2 number, since 2×384856692 = 2962293436755122, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (38485609) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19242834 + 19242835.
It is an arithmetic number, because the mean of its divisors is an integer number (19242835).
Almost surely, 238485669 is an apocalyptic number.
It is an amenable number.
38485669 is a deficient number, since it is larger than the sum of its proper divisors (1).
38485669 is an equidigital number, since it uses as much as digits as its factorization.
38485669 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1244160, while the sum is 49.
The square root of 38485669 is about 6203.6818906195. The cubic root of 38485669 is about 337.6237687803.
The spelling of 38485669 in words is "thirty-eight million, four hundred eighty-five thousand, six hundred sixty-nine".
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