Base | Representation |
---|---|
bin | 111111011111101… |
… | …1000101110010011 |
3 | 12111110222221001122 |
4 | 1332333120232103 |
5 | 13330404424210 |
6 | 551224552455 |
7 | 103540224035 |
oct | 17677305623 |
9 | 5443887048 |
10 | 2130545555 |
11 | 9a3701456 |
12 | 4b562272b |
13 | 27c524258 |
14 | 162d5bc55 |
15 | c709cb55 |
hex | 7efd8b93 |
2130545555 has 8 divisors (see below), whose sum is σ = 2557147632. Its totient is φ = 1704107808.
The previous prime is 2130545513. The next prime is 2130545603. The reversal of 2130545555 is 5555450312.
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 2130545555 - 28 = 2130545299 is a prime.
It is a Duffinian 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, 10484 + ... + 66113.
It is an arithmetic number, because the mean of its divisors is an integer number (319643454).
Almost surely, 22130545555 is an apocalyptic number.
2130545555 is a deficient number, since it is larger than the sum of its proper divisors (426602077).
2130545555 is an equidigital number, since it uses as much as digits as its factorization.
2130545555 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 82165.
The product of its (nonzero) digits is 75000, while the sum is 35.
The square root of 2130545555 is about 46157.8330838873. The cubic root of 2130545555 is about 1286.7581912114.
Adding to 2130545555 its reverse (5555450312), we get a palindrome (7685995867).
The spelling of 2130545555 in words is "two billion, one hundred thirty million, five hundred forty-five thousand, five hundred fifty-five".
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