Base | Representation |
---|---|
bin | 111111011110110… |
… | …1100001110000001 |
3 | 12111110011100102010 |
4 | 1332331230032001 |
5 | 13330301213441 |
6 | 551211243133 |
7 | 103533363231 |
oct | 17675541601 |
9 | 5443140363 |
10 | 2130101121 |
11 | 9a3428555 |
12 | 4b54494a9 |
13 | 27c3c9b85 |
14 | 162c83cc1 |
15 | c7011116 |
hex | 7ef6c381 |
2130101121 has 4 divisors (see below), whose sum is σ = 2840134832. Its totient is φ = 1420067412.
The previous prime is 2130101119. The next prime is 2130101161. The reversal of 2130101121 is 1211010312.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is not a de Polignac number, because 2130101121 - 21 = 2130101119 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2130101097 and 2130101106.
It is not an unprimeable number, because it can be changed into a prime (2130101161) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355016851 + ... + 355016856.
It is an arithmetic number, because the mean of its divisors is an integer number (710033708).
Almost surely, 22130101121 is an apocalyptic number.
It is an amenable number.
2130101121 is a deficient number, since it is larger than the sum of its proper divisors (710033711).
2130101121 is an equidigital number, since it uses as much as digits as its factorization.
2130101121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 710033710.
The product of its (nonzero) digits is 12, while the sum is 12.
The square root of 2130101121 is about 46153.0185470030. The cubic root of 2130101121 is about 1286.6687119607.
Adding to 2130101121 its reverse (1211010312), we get a palindrome (3341111433).
The spelling of 2130101121 in words is "two billion, one hundred thirty million, one hundred one thousand, one hundred twenty-one".
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