Base | Representation |
---|---|
bin | 11100010101001011… |
… | …111001110111101110 |
3 | 2220112000222221120002 |
4 | 130111023321313232 |
5 | 444300033310410 |
6 | 21550322424302 |
7 | 2124561355211 |
oct | 342513716756 |
9 | 86460887502 |
10 | 30420213230 |
11 | 119a04654a0 |
12 | 5a8b802092 |
13 | 2b3a462b94 |
14 | 1688191778 |
15 | bd09817a5 |
hex | 7152f9dee |
30420213230 has 128 divisors (see below), whose sum is σ = 62817638400. Its totient is φ = 10505152000.
The previous prime is 30420213227. The next prime is 30420213233. The reversal of 30420213230 is 3231202403.
It is an interprime number because it is at equal distance from previous prime (30420213227) and next prime (30420213233).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30420213233) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 84735791 + ... + 84736149.
It is an arithmetic number, because the mean of its divisors is an integer number (490762800).
Almost surely, 230420213230 is an apocalyptic number.
30420213230 is an abundant number, since it is smaller than the sum of its proper divisors (32397425170).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30420213230 is a wasteful number, since it uses less digits than its factorization.
30420213230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 770.
The product of its (nonzero) digits is 864, while the sum is 20.
Adding to 30420213230 its reverse (3231202403), we get a palindrome (33651415633).
The spelling of 30420213230 in words is "thirty billion, four hundred twenty million, two hundred thirteen thousand, two hundred thirty".
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