Base | Representation |
---|---|
bin | 11100010110100011… |
… | …010000101111010111 |
3 | 2220120122002101201200 |
4 | 130112203100233113 |
5 | 444321414112211 |
6 | 21552501323543 |
7 | 2125260123513 |
oct | 342643205727 |
9 | 86518071650 |
10 | 30443113431 |
11 | 11a02386785 |
12 | 5a974065b3 |
13 | 2b421203b3 |
14 | 168b233143 |
15 | bd29a6b56 |
hex | 7168d0bd7 |
30443113431 has 12 divisors (see below), whose sum is σ = 43978446408. Its totient is φ = 20293073424.
The previous prime is 30443113397. The next prime is 30443113517. The reversal of 30443113431 is 13431134403.
30443113431 is a `hidden beast` number, since 3 + 0 + 4 + 4 + 311 + 343 + 1 = 666.
It is not a de Polignac number, because 30443113431 - 26 = 30443113367 is a prime.
It is a super-2 number, since 2×304431134312 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30443113395 and 30443113404.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30443113031) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110145 + ... + 270218.
It is an arithmetic number, because the mean of its divisors is an integer number (3664870534).
Almost surely, 230443113431 is an apocalyptic number.
30443113431 is a deficient number, since it is larger than the sum of its proper divisors (13535332977).
30443113431 is a wasteful number, since it uses less digits than its factorization.
30443113431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 389262 (or 389259 counting only the distinct ones).
The product of its (nonzero) digits is 5184, while the sum is 27.
Adding to 30443113431 its reverse (13431134403), we get a palindrome (43874247834).
The spelling of 30443113431 in words is "thirty billion, four hundred forty-three million, one hundred thirteen thousand, four hundred thirty-one".
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