Base | Representation |
---|---|
bin | 11100010110011111… |
… | …111011100010000011 |
3 | 2220120120110000210020 |
4 | 130112133323202003 |
5 | 444321203141011 |
6 | 21552430504523 |
7 | 2125246525452 |
oct | 342637734203 |
9 | 86516400706 |
10 | 30442240131 |
11 | 11a0193a646 |
12 | 5a97065143 |
13 | 2b41ba5a54 |
14 | 168b086b99 |
15 | bd2883006 |
hex | 7167fb883 |
30442240131 has 16 divisors (see below), whose sum is σ = 41206276608. Its totient is φ = 19986674400.
The previous prime is 30442240063. The next prime is 30442240141. The reversal of 30442240131 is 13104224403.
It is not a de Polignac number, because 30442240131 - 227 = 30308022403 is a prime.
It is a super-2 number, since 2×304422401312 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30442240141) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840741 + ... + 876201.
It is an arithmetic number, because the mean of its divisors is an integer number (2575392288).
Almost surely, 230442240131 is an apocalyptic number.
30442240131 is a deficient number, since it is larger than the sum of its proper divisors (10764036477).
30442240131 is a wasteful number, since it uses less digits than its factorization.
30442240131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 39802.
The product of its (nonzero) digits is 2304, while the sum is 24.
Adding to 30442240131 its reverse (13104224403), we get a palindrome (43546464534).
The spelling of 30442240131 in words is "thirty billion, four hundred forty-two million, two hundred forty thousand, one hundred thirty-one".
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