Base | Representation |
---|---|
bin | 1011011001100010010101 |
3 | 12121211000101 |
4 | 23121202111 |
5 | 1231110211 |
6 | 144014101 |
7 | 34253620 |
oct | 13314225 |
9 | 5554011 |
10 | 2988181 |
11 | 1761079 |
12 | 1001331 |
13 | 808171 |
14 | 57adb7 |
15 | 3e05c1 |
hex | 2d9895 |
2988181 has 8 divisors (see below), whose sum is σ = 3438080. Its totient is φ = 2544048.
The previous prime is 2988169. The next prime is 2988191. The reversal of 2988181 is 1818892.
2988181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2988181 - 27 = 2988053 is a prime.
It is a super-2 number, since 2×29881812 = 17858451377522, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 2988181.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2988101) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261 + ... + 2458.
It is an arithmetic number, because the mean of its divisors is an integer number (429760).
22988181 is an apocalyptic number.
It is an amenable number.
2988181 is a deficient number, since it is larger than the sum of its proper divisors (449899).
2988181 is a wasteful number, since it uses less digits than its factorization.
2988181 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2883.
The product of its digits is 9216, while the sum is 37.
The square root of 2988181 is about 1728.6355891280. The cubic root of 2988181 is about 144.0353083428.
The spelling of 2988181 in words is "two million, nine hundred eighty-eight thousand, one hundred eighty-one".
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