Base | Representation |
---|---|
bin | 111111011110111… |
… | …0011010110010001 |
3 | 12111110012211110121 |
4 | 1332331303112101 |
5 | 13330303132241 |
6 | 551212030241 |
7 | 103533544324 |
oct | 17675632621 |
9 | 5443184417 |
10 | 2130130321 |
11 | 9a3448490 |
12 | 4b5462381 |
13 | 27c40a257 |
14 | 162c907bb |
15 | c7019ad1 |
hex | 7ef73591 |
2130130321 has 8 divisors (see below), whose sum is σ = 2324916000. Its totient is φ = 1935534240.
The previous prime is 2130130319. The next prime is 2130130339. The reversal of 2130130321 is 1230310312.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2130130321 - 21 = 2130130319 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 2130130295 and 2130130304.
It is not an unprimeable number, because it can be changed into a prime (2130130021) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23371 + ... + 69328.
It is an arithmetic number, because the mean of its divisors is an integer number (290614500).
Almost surely, 22130130321 is an apocalyptic number.
It is an amenable number.
2130130321 is a deficient number, since it is larger than the sum of its proper divisors (194785679).
2130130321 is a wasteful number, since it uses less digits than its factorization.
2130130321 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 94799.
The product of its (nonzero) digits is 108, while the sum is 16.
The square root of 2130130321 is about 46153.3348849246. The cubic root of 2130130321 is about 1286.6745912676.
Adding to 2130130321 its reverse (1230310312), we get a palindrome (3360440633).
Subtracting from 2130130321 its reverse (1230310312), we obtain a square (899820009 = 299972).
The spelling of 2130130321 in words is "two billion, one hundred thirty million, one hundred thirty thousand, three hundred twenty-one".
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