Base | Representation |
---|---|
bin | 1110110010110101010111 |
3 | 21022000221012 |
4 | 32302311113 |
5 | 1443100411 |
6 | 215042435 |
7 | 44651540 |
oct | 16626527 |
9 | 7260835 |
10 | 3878231 |
11 | 2209855 |
12 | 137041b |
13 | a5a316 |
14 | 72d4c7 |
15 | 51918b |
hex | 3b2d57 |
3878231 has 8 divisors (see below), whose sum is σ = 4540704. Its totient is φ = 3242880.
The previous prime is 3878221. The next prime is 3878263. The reversal of 3878231 is 1328783.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-3878231 is a prime.
It is a super-2 number, since 2×38782312 = 30081351378722, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3878221) 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, 6470 + ... + 7043.
It is an arithmetic number, because the mean of its divisors is an integer number (567588).
Almost surely, 23878231 is an apocalyptic number.
3878231 is a deficient number, since it is larger than the sum of its proper divisors (662473).
3878231 is a wasteful number, since it uses less digits than its factorization.
3878231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13561.
The product of its digits is 8064, while the sum is 32.
The square root of 3878231 is about 1969.3224723239. The cubic root of 3878231 is about 157.1126755495.
The spelling of 3878231 in words is "three million, eight hundred seventy-eight thousand, two hundred thirty-one".
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