Base | Representation |
---|---|
bin | 11100000100100011… |
… | …010101010000001111 |
3 | 2212210120212122211202 |
4 | 130010203111100033 |
5 | 443212113021111 |
6 | 21502513140115 |
7 | 2114632323440 |
oct | 340443252017 |
9 | 85716778752 |
10 | 30141142031 |
11 | 11867986140 |
12 | 5a1225a63b |
13 | 2ac46b21b0 |
14 | 165d0a92c7 |
15 | bb6208b3b |
hex | 7048d540f |
30141142031 has 32 divisors (see below), whose sum is σ = 40886565888. Its totient is φ = 21456368640.
The previous prime is 30141142027. The next prime is 30141142079. The reversal of 30141142031 is 13024114103.
It is not a de Polignac number, because 30141142031 - 22 = 30141142027 is a prime.
It is a super-2 number, since 2×301411420312 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30141141994 and 30141142012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30141142091) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58115 + ... + 252308.
It is an arithmetic number, because the mean of its divisors is an integer number (1277705184).
Almost surely, 230141142031 is an apocalyptic number.
30141142031 is a deficient number, since it is larger than the sum of its proper divisors (10745423857).
30141142031 is a wasteful number, since it uses less digits than its factorization.
30141142031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 310551.
The product of its (nonzero) digits is 288, while the sum is 20.
Adding to 30141142031 its reverse (13024114103), we get a palindrome (43165256134).
The spelling of 30141142031 in words is "thirty billion, one hundred forty-one million, one hundred forty-two thousand, thirty-one".
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