Base | Representation |
---|---|
bin | 111001011101… |
… | …0110011010000 |
3 | 2002200112002112 |
4 | 1302322303100 |
5 | 30203002024 |
6 | 2553404452 |
7 | 514026521 |
oct | 162726320 |
9 | 62615075 |
10 | 30125264 |
11 | 16006614 |
12 | a109728 |
13 | 631a000 |
14 | 4002848 |
15 | 29a100e |
hex | 1cbacd0 |
30125264 has 40 divisors (see below), whose sum is σ = 63303240. Its totient is φ = 13887744.
The previous prime is 30125257. The next prime is 30125281. The reversal of 30125264 is 46252103.
It can be written as a sum of positive squares in 4 ways, for example, as 3168400 + 26956864 = 1780^2 + 5192^2 .
It is a congruent number.
It is an unprimeable number.
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, 34724 + ... + 35580.
It is an arithmetic number, because the mean of its divisors is an integer number (1582581).
Almost surely, 230125264 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 30125264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31651620).
30125264 is an abundant number, since it is smaller than the sum of its proper divisors (33177976).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30125264 is an equidigital number, since it uses as much as digits as its factorization.
30125264 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 904 (or 872 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 23.
The square root of 30125264 is about 5488.6486497133. The cubic root of 30125264 is about 311.1551215895.
Adding to 30125264 its reverse (46252103), we get a palindrome (76377367).
The spelling of 30125264 in words is "thirty million, one hundred twenty-five thousand, two hundred sixty-four".
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