Base | Representation |
---|---|
bin | 1011010111101101010001 |
3 | 12121102201220 |
4 | 23113231101 |
5 | 1230340224 |
6 | 143515253 |
7 | 34223025 |
oct | 13275521 |
9 | 5542656 |
10 | 2980689 |
11 | 1756488 |
12 | bb8b29 |
13 | 80492a |
14 | 578385 |
15 | 3dd279 |
hex | 2d7b51 |
2980689 has 8 divisors (see below), whose sum is σ = 3988992. Its totient is φ = 1979760.
The previous prime is 2980687. The next prime is 2980697. The reversal of 2980689 is 9860892.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2980689 - 21 = 2980687 is a prime.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 2980689.
It is not an unprimeable number, because it can be changed into a prime (2980687) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817 + ... + 2574.
It is an arithmetic number, because the mean of its divisors is an integer number (498624).
22980689 is an apocalyptic number.
It is an amenable number.
2980689 is a deficient number, since it is larger than the sum of its proper divisors (1008303).
2980689 is a wasteful number, since it uses less digits than its factorization.
2980689 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3687.
The product of its (nonzero) digits is 62208, while the sum is 42.
The square root of 2980689 is about 1726.4672021211. The cubic root of 2980689 is about 143.9148319680.
The spelling of 2980689 in words is "two million, nine hundred eighty thousand, six hundred eighty-nine".
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