Base | Representation |
---|---|
bin | 1011011010000101010100 |
3 | 12121221002022 |
4 | 23122011110 |
5 | 1231143140 |
6 | 144032312 |
7 | 34263266 |
oct | 13320524 |
9 | 5557068 |
10 | 2990420 |
11 | 1762824 |
12 | 1002698 |
13 | 8091a4 |
14 | 57bb36 |
15 | 3e10b5 |
hex | 2da154 |
2990420 has 12 divisors (see below), whose sum is σ = 6279924. Its totient is φ = 1196160.
The previous prime is 2990401. The next prime is 2990423. The reversal of 2990420 is 240992.
It can be written as a sum of positive squares in 2 ways, for example, as 2155024 + 835396 = 1468^2 + 914^2 .
It is a super-2 number, since 2×29904202 = 17885223552800, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 2990420.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2990423) 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, 74741 + ... + 74780.
It is an arithmetic number, because the mean of its divisors is an integer number (523327).
22990420 is an apocalyptic number.
2990420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2990420 is an abundant number, since it is smaller than the sum of its proper divisors (3289504).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2990420 is a wasteful number, since it uses less digits than its factorization.
2990420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 149530 (or 149528 counting only the distinct ones).
The product of its (nonzero) digits is 1296, while the sum is 26.
The square root of 2990420 is about 1729.2830884502. The cubic root of 2990420 is about 144.0712738730.
The spelling of 2990420 in words is "two million, nine hundred ninety thousand, four hundred twenty".
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