Base | Representation |
---|---|
bin | 1111011111111… |
… | …11011100010110 |
3 | 100001122202110212 |
4 | 13233333130112 |
5 | 231241134032 |
6 | 20522445422 |
7 | 3136106246 |
oct | 757773426 |
9 | 301582425 |
10 | 130021142 |
11 | 67436899 |
12 | 37663872 |
13 | 20c252b4 |
14 | 133a7b26 |
15 | b634bb2 |
hex | 7bff716 |
130021142 has 16 divisors (see below), whose sum is σ = 205598400. Its totient is φ = 61498440.
The previous prime is 130021109. The next prime is 130021153. The reversal of 130021142 is 241120031.
130021142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28709 + ... + 32927.
It is an arithmetic number, because the mean of its divisors is an integer number (12849900).
Almost surely, 2130021142 is an apocalyptic number.
130021142 is a deficient number, since it is larger than the sum of its proper divisors (75577258).
130021142 is a wasteful number, since it uses less digits than its factorization.
130021142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5051.
The product of its (nonzero) digits is 48, while the sum is 14.
The square root of 130021142 is about 11402.6813513314. The cubic root of 130021142 is about 506.6071622370.
Adding to 130021142 its reverse (241120031), we get a palindrome (371141173).
The spelling of 130021142 in words is "one hundred thirty million, twenty-one thousand, one hundred forty-two".
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