Base | Representation |
---|---|
bin | 1011010111110010100100 |
3 | 12121110012110 |
4 | 23113302210 |
5 | 1230343103 |
6 | 143521020 |
7 | 34224021 |
oct | 13276244 |
9 | 5543173 |
10 | 2981028 |
11 | 1756766 |
12 | bb9170 |
13 | 804b2b |
14 | 578548 |
15 | 3dd403 |
hex | 2d7ca4 |
2981028 has 48 divisors (see below), whose sum is σ = 7310016. Its totient is φ = 944640.
The previous prime is 2981023. The next prime is 2981029. The reversal of 2981028 is 8201892.
It is a junction number, because it is equal to n+sod(n) for n = 2980986 and 2981004.
It is not an unprimeable number, because it can be changed into a prime (2981021) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35875 + ... + 35957.
It is an arithmetic number, because the mean of its divisors is an integer number (152292).
22981028 is an apocalyptic number.
It is an amenable number.
2981028 is an abundant number, since it is smaller than the sum of its proper divisors (4328988).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2981028 is a wasteful number, since it uses less digits than its factorization.
2981028 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 204 (or 202 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 30.
The square root of 2981028 is about 1726.5653766944. The cubic root of 2981028 is about 143.9202876729.
It can be divided in two parts, 298 and 1028, that added together give a triangular number (1326 = T51).
The spelling of 2981028 in words is "two million, nine hundred eighty-one thousand, twenty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •