Base | Representation |
---|---|
bin | 1001000101010011001001 |
3 | 11110222010020 |
4 | 21011103021 |
5 | 1102143001 |
6 | 123011053 |
7 | 26144460 |
oct | 11052311 |
9 | 4428106 |
10 | 2381001 |
11 | 1386977 |
12 | 969a89 |
13 | 65499c |
14 | 45d9d7 |
15 | 320736 |
hex | 2454c9 |
2381001 has 8 divisors (see below), whose sum is σ = 3628224. Its totient is φ = 1360560.
The previous prime is 2380997. The next prime is 2381011. The reversal of 2381001 is 1001832.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2381001 - 22 = 2380997 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2381011) 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, 56670 + ... + 56711.
It is an arithmetic number, because the mean of its divisors is an integer number (453528).
22381001 is an apocalyptic number.
2381001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
2381001 is a deficient number, since it is larger than the sum of its proper divisors (1247223).
2381001 is a wasteful number, since it uses less digits than its factorization.
2381001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 113391.
The product of its (nonzero) digits is 48, while the sum is 15.
The square root of 2381001 is about 1543.0492539125. The cubic root of 2381001 is about 133.5323604028.
Adding to 2381001 its reverse (1001832), we get a palindrome (3382833).
The spelling of 2381001 in words is "two million, three hundred eighty-one thousand, one".
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