Base | Representation |
---|---|
bin | 1001001000100… |
… | …1101101111011 |
3 | 2200002111022121 |
4 | 2102021231323 |
5 | 34302002302 |
6 | 3445102111 |
7 | 643440130 |
oct | 222115573 |
9 | 80074277 |
10 | 38312827 |
11 | 1a698aa3 |
12 | 109b7937 |
13 | 7c25917 |
14 | 5134587 |
15 | 356be37 |
hex | 2489b7b |
38312827 has 4 divisors (see below), whose sum is σ = 43786096. Its totient is φ = 32839560.
The previous prime is 38312803. The next prime is 38312831. The reversal of 38312827 is 72821383.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72821383 = 2393 ⋅30431.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-38312827 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 38312792 and 38312801.
It is not an unprimeable number, because it can be changed into a prime (38312837) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2736624 + ... + 2736637.
It is an arithmetic number, because the mean of its divisors is an integer number (10946524).
Almost surely, 238312827 is an apocalyptic number.
38312827 is a deficient number, since it is larger than the sum of its proper divisors (5473269).
38312827 is an equidigital number, since it uses as much as digits as its factorization.
38312827 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5473268.
The product of its digits is 16128, while the sum is 34.
The square root of 38312827 is about 6189.7356163248. The cubic root of 38312827 is about 337.1175790972.
The spelling of 38312827 in words is "thirty-eight million, three hundred twelve thousand, eight hundred twenty-seven".
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