Base | Representation |
---|---|
bin | 1001000011110… |
… | …1010111101101 |
3 | 2122111121100110 |
4 | 2100331113231 |
5 | 34212000414 |
6 | 3434250233 |
7 | 640665330 |
oct | 220752755 |
9 | 78447313 |
10 | 38000109 |
11 | 1a4a5054 |
12 | 10886979 |
13 | 7b46494 |
14 | 5092617 |
15 | 3509459 |
hex | 243d5ed |
38000109 has 8 divisors (see below), whose sum is σ = 57904960. Its totient is φ = 21714336.
The previous prime is 38000107. The next prime is 38000113. The reversal of 38000109 is 90100083.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 38000109 - 21 = 38000107 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1809529 = 38000109 / (3 + 8 + 0 + 0 + 0 + 1 + 0 + 9).
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38000107) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 904744 + ... + 904785.
It is an arithmetic number, because the mean of its divisors is an integer number (7238120).
Almost surely, 238000109 is an apocalyptic number.
It is an amenable number.
38000109 is a deficient number, since it is larger than the sum of its proper divisors (19904851).
38000109 is a wasteful number, since it uses less digits than its factorization.
38000109 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1809539.
The product of its (nonzero) digits is 216, while the sum is 21.
The square root of 38000109 is about 6164.4228440301. The cubic root of 38000109 is about 336.1978621316.
The spelling of 38000109 in words is "thirty-eight million, one hundred nine", and thus it is an aban number.
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