Base | Representation |
---|---|
bin | 111001111010… |
… | …0000110101100 |
3 | 2010010110001201 |
4 | 1303310012230 |
5 | 30233004410 |
6 | 3002415244 |
7 | 516025030 |
oct | 163640654 |
9 | 63113051 |
10 | 30359980 |
11 | 161569a2 |
12 | a201524 |
13 | 639cab1 |
14 | 40641c0 |
15 | 29ea83a |
hex | 1cf41ac |
30359980 has 48 divisors (see below), whose sum is σ = 74846016. Its totient is φ = 10126080.
The previous prime is 30359951. The next prime is 30359981. The reversal of 30359980 is 8995303.
It is a Harshad number since it is a multiple of its sum of digits (37).
It is not an unprimeable number, because it can be changed into a prime (30359981) 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 15 ways as a sum of consecutive naturals, for example, 2250 + ... + 8110.
It is an arithmetic number, because the mean of its divisors is an integer number (1559292).
Almost surely, 230359980 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30359980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37423008).
30359980 is an abundant number, since it is smaller than the sum of its proper divisors (44486036).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30359980 is a wasteful number, since it uses less digits than its factorization.
30359980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5914 (or 5912 counting only the distinct ones).
The product of its (nonzero) digits is 29160, while the sum is 37.
The square root of 30359980 is about 5509.9891106970. The cubic root of 30359980 is about 311.9611364040.
The spelling of 30359980 in words is "thirty million, three hundred fifty-nine thousand, nine hundred eighty".
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