Base | Representation |
---|---|
bin | 11011111110000011… |
… | …000010001101100011 |
3 | 2212111222112021202121 |
4 | 123332003002031203 |
5 | 443001143342011 |
6 | 21444014125111 |
7 | 2112135614452 |
oct | 337603021543 |
9 | 85458467677 |
10 | 30032012131 |
11 | 11811319240 |
12 | 59a17b0797 |
13 | 2aa7bc2ba4 |
14 | 164c7bcb99 |
15 | bab84de71 |
hex | 6fe0c2363 |
30032012131 has 16 divisors (see below), whose sum is σ = 33110782848. Its totient is φ = 27012585600.
The previous prime is 30032012117. The next prime is 30032012137. The reversal of 30032012131 is 13121023003.
It is not a de Polignac number, because 30032012131 - 223 = 30023623523 is a prime.
It is a super-2 number, since 2×300320121312 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30032012137) 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, 454696 + ... + 516538.
It is an arithmetic number, because the mean of its divisors is an integer number (2069423928).
Almost surely, 230032012131 is an apocalyptic number.
30032012131 is a deficient number, since it is larger than the sum of its proper divisors (3078770717).
30032012131 is a wasteful number, since it uses less digits than its factorization.
30032012131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 62322.
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 30032012131 its reverse (13121023003), we get a palindrome (43153035134).
The spelling of 30032012131 in words is "thirty billion, thirty-two million, twelve thousand, one hundred thirty-one".
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