Base | Representation |
---|---|
bin | 1001001110010… |
… | …1010100111101 |
3 | 2200210120001011 |
4 | 2103211110331 |
5 | 34401004221 |
6 | 3501115221 |
7 | 646562116 |
oct | 223452475 |
9 | 80716034 |
10 | 38688061 |
11 | 1a924a05 |
12 | 10b58b11 |
13 | 8027659 |
14 | 51d120d |
15 | 35e31e1 |
hex | 24e553d |
38688061 has 2 divisors, whose sum is σ = 38688062. Its totient is φ = 38688060.
The previous prime is 38688053. The next prime is 38688101. The reversal of 38688061 is 16088683.
It is an a-pointer prime, because the next prime (38688101) can be obtained adding 38688061 to its sum of digits (40).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 38675961 + 12100 = 6219^2 + 110^2 .
It is a cyclic number.
It is not a de Polignac number, because 38688061 - 23 = 38688053 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (38686061) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19344030 + 19344031.
It is an arithmetic number, because the mean of its divisors is an integer number (19344031).
Almost surely, 238688061 is an apocalyptic number.
It is an amenable number.
38688061 is a deficient number, since it is larger than the sum of its proper divisors (1).
38688061 is an equidigital number, since it uses as much as digits as its factorization.
38688061 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 55296, while the sum is 40.
The square root of 38688061 is about 6219.9727491364. The cubic root of 38688061 is about 338.2145767024.
The spelling of 38688061 in words is "thirty-eight million, six hundred eighty-eight thousand, sixty-one".
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