Base | Representation |
---|---|
bin | 1000000111110111… |
… | …1010001100001011 |
3 | 12121221222100221201 |
4 | 2001331322030023 |
5 | 13431201134440 |
6 | 1000211245031 |
7 | 105014600455 |
oct | 20175721413 |
9 | 5557870851 |
10 | 2180489995 |
11 | a19914452 |
12 | 50a2a9777 |
13 | 289990288 |
14 | 16983d2d5 |
15 | cb66619a |
hex | 81f7a30b |
2180489995 has 8 divisors (see below), whose sum is σ = 2619977616. Its totient is φ = 1742132256.
The previous prime is 2180489959. The next prime is 2180490043. The reversal of 2180489995 is 5999840812.
2180489995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 2180489995 - 27 = 2180489867 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, 278217 + ... + 285946.
It is an arithmetic number, because the mean of its divisors is an integer number (327497202).
Almost surely, 22180489995 is an apocalyptic number.
2180489995 is a deficient number, since it is larger than the sum of its proper divisors (439487621).
2180489995 is an equidigital number, since it uses as much as digits as its factorization.
2180489995 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 564941.
The product of its (nonzero) digits is 1866240, while the sum is 55.
The square root of 2180489995 is about 46695.7170948257. The cubic root of 2180489995 is about 1296.7353974431.
The spelling of 2180489995 in words is "two billion, one hundred eighty million, four hundred eighty-nine thousand, nine hundred ninety-five".
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