Base | Representation |
---|---|
bin | 11100010110100000… |
… | …001100110111011100 |
3 | 2220120120120122011220 |
4 | 130112200030313130 |
5 | 444321212424012 |
6 | 21552432213340 |
7 | 2125250242452 |
oct | 342640146734 |
9 | 86516518156 |
10 | 30442311132 |
11 | 11a01988a22 |
12 | 5a9709a250 |
13 | 2b41bcc16c |
14 | 168b0a49d2 |
15 | bd289908c |
hex | 71680cddc |
30442311132 has 48 divisors (see below), whose sum is σ = 72941151360. Its totient is φ = 9876379968.
The previous prime is 30442311131. The next prime is 30442311161. The reversal of 30442311132 is 23111324403.
It is a happy number.
It is a super-2 number, since 2×304423111322 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30442311131) 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 15 ways as a sum of consecutive naturals, for example, 41794 + ... + 250262.
It is an arithmetic number, because the mean of its divisors is an integer number (1519607320).
Almost surely, 230442311132 is an apocalyptic number.
It is an amenable number.
30442311132 is an abundant number, since it is smaller than the sum of its proper divisors (42498840228).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30442311132 is a wasteful number, since it uses less digits than its factorization.
30442311132 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 208802 (or 208800 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 24.
Adding to 30442311132 its reverse (23111324403), we get a palindrome (53553635535).
The spelling of 30442311132 in words is "thirty billion, four hundred forty-two million, three hundred eleven thousand, one hundred thirty-two".
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