Base | Representation |
---|---|
bin | 111010010110… |
… | …0111011010000 |
3 | 2010120021022201 |
4 | 1310230323100 |
5 | 30312431340 |
6 | 3011412544 |
7 | 521014414 |
oct | 164547320 |
9 | 63507281 |
10 | 30592720 |
11 | 162a5844 |
12 | a2b4154 |
13 | 6451a02 |
14 | 40c4d44 |
15 | 2a4479a |
hex | 1d2ced0 |
30592720 has 40 divisors (see below), whose sum is σ = 72305640. Its totient is φ = 12034560.
The previous prime is 30592699. The next prime is 30592729. The reversal of 30592720 is 2729503.
It can be written as a sum of positive squares in 4 ways, for example, as 166464 + 30426256 = 408^2 + 5516^2 .
It is a tau number, because it is divible by the number of its divisors (40).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30592729) 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 7 ways as a sum of consecutive naturals, for example, 1746 + ... + 8014.
It is an arithmetic number, because the mean of its divisors is an integer number (1807641).
Almost surely, 230592720 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 30592720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36152820).
30592720 is an abundant number, since it is smaller than the sum of its proper divisors (41712920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30592720 is a wasteful number, since it uses less digits than its factorization.
30592720 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6343 (or 6337 counting only the distinct ones).
The product of its (nonzero) digits is 3780, while the sum is 28.
The square root of 30592720 is about 5531.0686128451. The cubic root of 30592720 is about 312.7562740448.
It can be divided in two parts, 305 and 92720, that added together give a square (93025 = 3052).
The spelling of 30592720 in words is "thirty million, five hundred ninety-two thousand, seven hundred twenty".
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