Base | Representation |
---|---|
bin | 1000000111110000… |
… | …0010100111001001 |
3 | 12121221001111002012 |
4 | 2001330002213021 |
5 | 13431040001301 |
6 | 1000152545305 |
7 | 105010460501 |
oct | 20174024711 |
9 | 5557044065 |
10 | 2180000201 |
11 | a1960a465 |
12 | 50a0b2235 |
13 | 28984b362 |
14 | 169752a01 |
15 | cb5baebb |
hex | 81f029c9 |
2180000201 has 4 divisors (see below), whose sum is σ = 2226383232. Its totient is φ = 2133617172.
The previous prime is 2180000189. The next prime is 2180000203. The reversal of 2180000201 is 1020000812.
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 a cyclic number.
It is not a de Polignac number, because 2180000201 - 210 = 2179999177 is a prime.
It is not an unprimeable number, because it can be changed into a prime (2180000203) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23191445 + ... + 23191538.
It is an arithmetic number, because the mean of its divisors is an integer number (556595808).
Almost surely, 22180000201 is an apocalyptic number.
It is an amenable number.
2180000201 is a deficient number, since it is larger than the sum of its proper divisors (46383031).
2180000201 is an equidigital number, since it uses as much as digits as its factorization.
2180000201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 46383030.
The product of its (nonzero) digits is 32, while the sum is 14.
The square root of 2180000201 is about 46690.4722721885. The cubic root of 2180000201 is about 1296.6382968250.
The spelling of 2180000201 in words is "two billion, one hundred eighty million, two hundred one", and thus it is an aban number.
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