Base | Representation |
---|---|
bin | 11100001000110110… |
… | …101000111010001111 |
3 | 2212222121200021121212 |
4 | 130020312220322033 |
5 | 443334101442033 |
6 | 21514012045035 |
7 | 2116466626100 |
oct | 341066507217 |
9 | 85877607555 |
10 | 30213312143 |
11 | 118a4699663 |
12 | 5a3246377b |
13 | 2b066306c1 |
14 | 16688d43a7 |
15 | bbc712748 |
hex | 708da8e8f |
30213312143 has 12 divisors (see below), whose sum is σ = 35381986200. Its totient is φ = 25723312272.
The previous prime is 30213312089. The next prime is 30213312149. The reversal of 30213312143 is 34121331203.
It is not a de Polignac number, because 30213312143 - 26 = 30213312079 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30213312149) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2061821 + ... + 2076422.
It is an arithmetic number, because the mean of its divisors is an integer number (2948498850).
Almost surely, 230213312143 is an apocalyptic number.
30213312143 is a deficient number, since it is larger than the sum of its proper divisors (5168674057).
30213312143 is a wasteful number, since it uses less digits than its factorization.
30213312143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4138406 (or 4138399 counting only the distinct ones).
The product of its (nonzero) digits is 1296, while the sum is 23.
Adding to 30213312143 its reverse (34121331203), we get a palindrome (64334643346).
The spelling of 30213312143 in words is "thirty billion, two hundred thirteen million, three hundred twelve thousand, one hundred forty-three".
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