Base | Representation |
---|---|
bin | 11011011010111… |
… | …11110001101010 |
3 | 121000211202110000 |
4 | 31231133301222 |
5 | 432341433232 |
6 | 34454203430 |
7 | 5462140455 |
oct | 1555376152 |
9 | 530752400 |
10 | 230030442 |
11 | 108934304 |
12 | 65053576 |
13 | 388700b5 |
14 | 2279c49c |
15 | 152dc27c |
hex | db5fc6a |
230030442 has 40 divisors (see below), whose sum is σ = 516869892. Its totient is φ = 76464000.
The previous prime is 230030393. The next prime is 230030483. The reversal of 230030442 is 244030032.
It can be written as a sum of positive squares in 2 ways, for example, as 209699361 + 20331081 = 14481^2 + 4509^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 63192 + ... + 66732.
Almost surely, 2230030442 is an apocalyptic number.
230030442 is an abundant number, since it is smaller than the sum of its proper divisors (286839450).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
230030442 is a wasteful number, since it uses less digits than its factorization.
230030442 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3956 (or 3947 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 18.
The square root of 230030442 is about 15166.7544979142. The cubic root of 230030442 is about 612.7195976161.
Adding to 230030442 its reverse (244030032), we get a palindrome (474060474).
The spelling of 230030442 in words is "two hundred thirty million, thirty thousand, four hundred forty-two".
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