Base | Representation |
---|---|
bin | 1001001110101… |
… | …0000010111001 |
3 | 2200211112112212 |
4 | 2103222002321 |
5 | 34402114020 |
6 | 3501344505 |
7 | 650002343 |
oct | 223520271 |
9 | 80745485 |
10 | 38707385 |
11 | 1a938482 |
12 | 10b68135 |
13 | 80333a2 |
14 | 51d8293 |
15 | 35e8cc5 |
hex | 24ea0b9 |
38707385 has 8 divisors (see below), whose sum is σ = 49181256. Its totient is φ = 29144320.
The previous prime is 38707379. The next prime is 38707387. The reversal of 38707385 is 58370783.
It can be written as a sum of positive squares in 4 ways, for example, as 2262016 + 36445369 = 1504^2 + 6037^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 38707385 - 212 = 38703289 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38707387) 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, 227606 + ... + 227775.
It is an arithmetic number, because the mean of its divisors is an integer number (6147657).
Almost surely, 238707385 is an apocalyptic number.
It is an amenable number.
38707385 is a deficient number, since it is larger than the sum of its proper divisors (10473871).
38707385 is a wasteful number, since it uses less digits than its factorization.
38707385 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 455403.
The product of its (nonzero) digits is 141120, while the sum is 41.
The square root of 38707385 is about 6221.5259382245. The cubic root of 38707385 is about 338.2708780562.
The spelling of 38707385 in words is "thirty-eight million, seven hundred seven thousand, three hundred eighty-five".
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