Base | Representation |
---|---|
bin | 111010110110… |
… | …0001111101000 |
3 | 2011001110002100 |
4 | 1311230033220 |
5 | 30344231242 |
6 | 3021133400 |
7 | 523144506 |
oct | 165541750 |
9 | 64043070 |
10 | 30852072 |
11 | 16462689 |
12 | a3ba260 |
13 | 6512a84 |
14 | 4151676 |
15 | 2a9654c |
hex | 1d6c3e8 |
30852072 has 48 divisors (see below), whose sum is σ = 84221280. Its totient is φ = 10202400.
The previous prime is 30852071. The next prime is 30852077. The reversal of 30852072 is 27025803.
It is not an unprimeable number, because it can be changed into a prime (30852071) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7797 + ... + 11067.
It is an arithmetic number, because the mean of its divisors is an integer number (1754610).
Almost surely, 230852072 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 30852072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42110640).
30852072 is an abundant number, since it is smaller than the sum of its proper divisors (53369208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30852072 is a wasteful number, since it uses less digits than its factorization.
30852072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3414 (or 3407 counting only the distinct ones).
The product of its (nonzero) digits is 3360, while the sum is 27.
The square root of 30852072 is about 5554.4641505729. The cubic root of 30852072 is about 313.6375928920.
Adding to 30852072 its reverse (27025803), we get a palindrome (57877875).
The spelling of 30852072 in words is "thirty million, eight hundred fifty-two thousand, seventy-two".
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