Base | Representation |
---|---|
bin | 111011111101111… |
… | …0001110011100101 |
3 | 12012020020021112000 |
4 | 1313323301303211 |
5 | 13110103043310 |
6 | 531355315513 |
7 | 100602033240 |
oct | 16773616345 |
9 | 5166207460 |
10 | 2012159205 |
11 | 9428a1aa1 |
12 | 481a4bb99 |
13 | 260b43964 |
14 | 151342257 |
15 | bb9b54c0 |
hex | 77ef1ce5 |
2012159205 has 64 divisors (see below), whose sum is σ = 4113592320. Its totient is φ = 914131008.
The previous prime is 2012159203. The next prime is 2012159213. The reversal of 2012159205 is 5029512102.
It is not a de Polignac number, because 2012159205 - 21 = 2012159203 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2012159203) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 147504 + ... + 160566.
It is an arithmetic number, because the mean of its divisors is an integer number (64274880).
Almost surely, 22012159205 is an apocalyptic number.
It is an amenable number.
2012159205 is an abundant number, since it is smaller than the sum of its proper divisors (2101433115).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2012159205 is a wasteful number, since it uses less digits than its factorization.
2012159205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13247 (or 13241 counting only the distinct ones).
The product of its (nonzero) digits is 1800, while the sum is 27.
The square root of 2012159205 is about 44857.0975989308. The cubic root of 2012159205 is about 1262.4691660607.
The spelling of 2012159205 in words is "two billion, twelve million, one hundred fifty-nine thousand, two hundred five".
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