Base | Representation |
---|---|
bin | 11100001000110101… |
… | …100010010101000011 |
3 | 2212222121010121001110 |
4 | 130020311202111003 |
5 | 443334013214133 |
6 | 21514001534403 |
7 | 2116464313200 |
oct | 341065422503 |
9 | 85877117043 |
10 | 30213023043 |
11 | 118a4511435 |
12 | 5a32344403 |
13 | 2b0655bc38 |
14 | 166885aca7 |
15 | bbc6a6c63 |
hex | 708d62543 |
30213023043 has 24 divisors (see below), whose sum is σ = 46947758160. Its totient is φ = 17232626880.
The previous prime is 30213023017. The next prime is 30213023047. The reversal of 30213023043 is 34032031203.
It is not a de Polignac number, because 30213023043 - 26 = 30213022979 is a prime.
It is a super-2 number, since 2×302130230432 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is not an unprimeable number, because it can be changed into a prime (30213023047) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110428 + ... + 269481.
It is an arithmetic number, because the mean of its divisors is an integer number (1956156590).
Almost surely, 230213023043 is an apocalyptic number.
30213023043 is a deficient number, since it is larger than the sum of its proper divisors (16734735117).
30213023043 is a wasteful number, since it uses less digits than its factorization.
30213023043 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 380467 (or 380460 counting only the distinct ones).
The product of its (nonzero) digits is 1296, while the sum is 21.
Adding to 30213023043 its reverse (34032031203), we get a palindrome (64245054246).
The spelling of 30213023043 in words is "thirty billion, two hundred thirteen million, twenty-three thousand, forty-three".
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