Base | Representation |
---|---|
bin | 1011010111101010110010 |
3 | 12121102112000 |
4 | 23113222302 |
5 | 1230334110 |
6 | 143514430 |
7 | 34222410 |
oct | 13275262 |
9 | 5542460 |
10 | 2980530 |
11 | 1756353 |
12 | bb8a16 |
13 | 804837 |
14 | 5782b0 |
15 | 3dd1c0 |
hex | 2d7ab2 |
2980530 has 128 divisors (see below), whose sum is σ = 9676800. Its totient is φ = 637632.
The previous prime is 2980513. The next prime is 2980531. The reversal of 2980530 is 350892.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 2980494 and 2980503.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2980531) 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 63 ways as a sum of consecutive naturals, for example, 35869 + ... + 35951.
It is an arithmetic number, because the mean of its divisors is an integer number (75600).
22980530 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2980530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4838400).
2980530 is an abundant number, since it is smaller than the sum of its proper divisors (6696270).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2980530 is a wasteful number, since it uses less digits than its factorization.
2980530 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 125 (or 119 counting only the distinct ones).
The product of its (nonzero) digits is 2160, while the sum is 27.
The square root of 2980530 is about 1726.4211537166. The cubic root of 2980530 is about 143.9122729551.
The spelling of 2980530 in words is "two million, nine hundred eighty thousand, five hundred thirty".
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