Base | Representation |
---|---|
bin | 111111011111000… |
… | …1001011111001001 |
3 | 12111110101102212010 |
4 | 1332332021133021 |
5 | 13330314033001 |
6 | 551214010133 |
7 | 103534402566 |
oct | 17676113711 |
9 | 5443342763 |
10 | 2130221001 |
11 | 9a34aa627 |
12 | 4b54a6949 |
13 | 27c43c5cc |
14 | 162cb586d |
15 | c70368d6 |
hex | 7ef897c9 |
2130221001 has 8 divisors (see below), whose sum is σ = 2841181344. Its totient is φ = 1419704000.
The previous prime is 2130220993. The next prime is 2130221011. The reversal of 2130221001 is 1001220312.
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 2130221001 - 23 = 2130220993 is a prime.
It is not an unprimeable number, because it can be changed into a prime (2130221011) 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, 99456 + ... + 118961.
It is an arithmetic number, because the mean of its divisors is an integer number (355147668).
Almost surely, 22130221001 is an apocalyptic number.
It is an amenable number.
2130221001 is a deficient number, since it is larger than the sum of its proper divisors (710960343).
2130221001 is a wasteful number, since it uses less digits than its factorization.
2130221001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 221671.
The product of its (nonzero) digits is 24, while the sum is 12.
The square root of 2130221001 is about 46154.3172520188. The cubic root of 2130221001 is about 1286.6928489919.
Adding to 2130221001 its reverse (1001220312), we get a palindrome (3131441313).
The spelling of 2130221001 in words is "two billion, one hundred thirty million, two hundred twenty-one thousand, one".
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