Base | Representation |
---|---|
bin | 11011011011110… |
… | …11000100100010 |
3 | 121001001102210202 |
4 | 31231323010202 |
5 | 432404022432 |
6 | 34500425202 |
7 | 5463114431 |
oct | 1555730442 |
9 | 531042722 |
10 | 230142242 |
11 | 108a00300 |
12 | 650a8202 |
13 | 388abc55 |
14 | 227cb118 |
15 | 15310462 |
hex | db7b122 |
230142242 has 12 divisors (see below), whose sum is σ = 379449798. Its totient is φ = 104610000.
The previous prime is 230142197. The next prime is 230142281. The reversal of 230142242 is 242241032.
It can be written as a sum of positive squares in only one way, i.e., 230098561 + 43681 = 15169^2 + 209^2 .
It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 475259 + ... + 475742.
Almost surely, 2230142242 is an apocalyptic number.
230142242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
230142242 is a deficient number, since it is larger than the sum of its proper divisors (149307556).
230142242 is a wasteful number, since it uses less digits than its factorization.
230142242 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 951025 (or 951014 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 20.
The square root of 230142242 is about 15170.4397431320. The cubic root of 230142242 is about 612.8188467351.
Adding to 230142242 its reverse (242241032), we get a palindrome (472383274).
The spelling of 230142242 in words is "two hundred thirty million, one hundred forty-two thousand, two hundred forty-two".
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