Base | Representation |
---|---|
bin | 111011101000000… |
… | …1001000100111011 |
3 | 12011102201010010200 |
4 | 1313100021010323 |
5 | 13044141021222 |
6 | 530310213243 |
7 | 100402561314 |
oct | 16720110473 |
9 | 5142633120 |
10 | 2000720187 |
11 | 937399764 |
12 | 47a054223 |
13 | 25b66a0cb |
14 | 14da0560b |
15 | ba9a5eac |
hex | 7740913b |
2000720187 has 6 divisors (see below), whose sum is σ = 2889929172. Its totient is φ = 1333813452.
The previous prime is 2000720143. The next prime is 2000720221. The reversal of 2000720187 is 7810270002.
It is not a de Polignac number, because 2000720187 - 215 = 2000687419 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 2000720187.
It is not an unprimeable number, because it can be changed into a prime (2000720087) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111151113 + ... + 111151130.
It is an arithmetic number, because the mean of its divisors is an integer number (481654862).
Almost surely, 22000720187 is an apocalyptic number.
2000720187 is a deficient number, since it is larger than the sum of its proper divisors (889208985).
2000720187 is a wasteful number, since it uses less digits than its factorization.
2000720187 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 222302249 (or 222302246 counting only the distinct ones).
The product of its (nonzero) digits is 1568, while the sum is 27.
The square root of 2000720187 is about 44729.4107607064. The cubic root of 2000720187 is about 1260.0722615397.
Adding to 2000720187 its reverse (7810270002), we get a palindrome (9810990189).
The spelling of 2000720187 in words is "two billion, seven hundred twenty thousand, one hundred eighty-seven".
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