Base | Representation |
---|---|
bin | 1011011000000001101011 |
3 | 12121111112021 |
4 | 23120001223 |
5 | 1230410440 |
6 | 143525311 |
7 | 34226602 |
oct | 13300153 |
9 | 5544467 |
10 | 2981995 |
11 | 1757465 |
12 | bb9837 |
13 | 8053c3 |
14 | 578a39 |
15 | 3dd84a |
hex | 2d806b |
2981995 has 4 divisors (see below), whose sum is σ = 3578400. Its totient is φ = 2385592.
The previous prime is 2981981. The next prime is 2981999. The reversal of 2981995 is 5991892.
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 2981995 - 25 = 2981963 is a prime.
It is not an unprimeable number, because it can be changed into a prime (2981999) 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, 298195 + ... + 298204.
It is an arithmetic number, because the mean of its divisors is an integer number (894600).
22981995 is an apocalyptic number.
2981995 is a deficient number, since it is larger than the sum of its proper divisors (596405).
2981995 is an equidigital number, since it uses as much as digits as its factorization.
2981995 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 596404.
The product of its digits is 58320, while the sum is 43.
The square root of 2981995 is about 1726.8453897208. The cubic root of 2981995 is about 143.9358478390.
The spelling of 2981995 in words is "two million, nine hundred eighty-one thousand, nine hundred ninety-five".
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