Base | Representation |
---|---|
bin | 111010100111… |
… | …0111101110110 |
3 | 2010211100120210 |
4 | 1311032331312 |
5 | 30331412100 |
6 | 3014410250 |
7 | 522135051 |
oct | 165167566 |
9 | 63740523 |
10 | 30732150 |
11 | 16390579 |
12 | a360986 |
13 | 64a0307 |
14 | 411da98 |
15 | 2a70c50 |
hex | 1d4ef76 |
30732150 has 48 divisors (see below), whose sum is σ = 76655808. Its totient is φ = 8148000.
The previous prime is 30732133. The next prime is 30732151. The reversal of 30732150 is 5123703.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30732151) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31165 + ... + 32135.
It is an arithmetic number, because the mean of its divisors is an integer number (1596996).
Almost surely, 230732150 is an apocalyptic number.
30732150 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 30732150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38327904).
30732150 is an abundant number, since it is smaller than the sum of its proper divisors (45923658).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30732150 is a wasteful number, since it uses less digits than its factorization.
30732150 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1197 (or 1192 counting only the distinct ones).
The product of its (nonzero) digits is 630, while the sum is 21.
The square root of 30732150 is about 5543.6585392681. The cubic root of 30732150 is about 313.2306954709.
Adding to 30732150 its reverse (5123703), we get a palindrome (35855853).
The spelling of 30732150 in words is "thirty million, seven hundred thirty-two thousand, one hundred fifty".
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