Base | Representation |
---|---|
bin | 11100001000110110… |
… | …010000100001010011 |
3 | 2212222121111012120212 |
4 | 130020312100201103 |
5 | 443334040242433 |
6 | 21514005554335 |
7 | 2116466031614 |
oct | 341066204123 |
9 | 85877435525 |
10 | 30213212243 |
11 | 118a46305a5 |
12 | 5a324159ab |
13 | 2b065c70a6 |
14 | 16688a9c0b |
15 | bbc6e2d48 |
hex | 708d90853 |
30213212243 has 24 divisors (see below), whose sum is σ = 32450322432. Its totient is φ = 28122643584.
The previous prime is 30213212233. The next prime is 30213212261. The reversal of 30213212243 is 34221231203.
It is not a de Polignac number, because 30213212243 - 218 = 30212950099 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30213212203) 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, 13468880 + ... + 13471122.
It is an arithmetic number, because the mean of its divisors is an integer number (1352096768).
Almost surely, 230213212243 is an apocalyptic number.
30213212243 is a deficient number, since it is larger than the sum of its proper divisors (2237110189).
30213212243 is a wasteful number, since it uses less digits than its factorization.
30213212243 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2771 (or 2754 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 23.
Adding to 30213212243 its reverse (34221231203), we get a palindrome (64434443446).
The spelling of 30213212243 in words is "thirty billion, two hundred thirteen million, two hundred twelve thousand, two hundred forty-three".
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