Base | Representation |
---|---|
bin | 11100010101110010… |
… | …110110011111101111 |
3 | 2220112202012122202120 |
4 | 130111302312133233 |
5 | 444310142014043 |
6 | 21551325324023 |
7 | 2125044220320 |
oct | 342562663757 |
9 | 86482178676 |
10 | 30430423023 |
11 | 119a61a9240 |
12 | 5a93106613 |
13 | 2b3c5c9090 |
14 | 168968c447 |
15 | bd17eb983 |
hex | 715cb67ef |
30430423023 has 128 divisors (see below), whose sum is σ = 56048025600. Its totient is φ = 14175889920.
The previous prime is 30430423003. The next prime is 30430423109. The reversal of 30430423023 is 32032403403.
It is not a de Polignac number, because 30430423023 - 220 = 30429374447 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30430422984 and 30430423002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30430423003) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 21029286 + ... + 21030732.
It is an arithmetic number, because the mean of its divisors is an integer number (437875200).
Almost surely, 230430423023 is an apocalyptic number.
30430423023 is a gapful number since it is divisible by the number (33) formed by its first and last digit.
30430423023 is a deficient number, since it is larger than the sum of its proper divisors (25617602577).
30430423023 is a wasteful number, since it uses less digits than its factorization.
30430423023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1677.
The product of its (nonzero) digits is 5184, while the sum is 24.
Adding to 30430423023 its reverse (32032403403), we get a palindrome (62462826426).
The spelling of 30430423023 in words is "thirty billion, four hundred thirty million, four hundred twenty-three thousand, twenty-three".
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