Base | Representation |
---|---|
bin | 111101000010011010111 |
3 | 10202121121022 |
4 | 13220103113 |
5 | 1003000322 |
6 | 110511355 |
7 | 23000105 |
oct | 7502327 |
9 | 3677538 |
10 | 2000087 |
11 | 1146771 |
12 | 80555b |
13 | 5504ab |
14 | 3a0c75 |
15 | 297942 |
hex | 1e84d7 |
2000087 has 4 divisors (see below), whose sum is σ = 2009280. Its totient is φ = 1990896.
The previous prime is 2000083. The next prime is 2000093. The reversal of 2000087 is 7800002.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 2000087 - 22 = 2000083 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2000081) 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, 4262 + ... + 4707.
It is an arithmetic number, because the mean of its divisors is an integer number (502320).
22000087 is an apocalyptic number.
2000087 is a deficient number, since it is larger than the sum of its proper divisors (9193).
2000087 is an equidigital number, since it uses as much as digits as its factorization.
2000087 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9192.
The product of its (nonzero) digits is 112, while the sum is 17.
The square root of 2000087 is about 1414.2443211836. The cubic root of 2000087 is about 125.9939318485.
Adding to 2000087 its reverse (7800002), we get a palindrome (9800089).
The spelling of 2000087 in words is "two million, eighty-seven", and thus it is an aban number and an uban number.
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