Base | Representation |
---|---|
bin | 1010110000010110… |
… | …0100101010000110 |
3 | 21110012200000022000 |
4 | 2230011210222012 |
5 | 21403102021042 |
6 | 1154253250130 |
7 | 131355205452 |
oct | 25405445206 |
9 | 7405600260 |
10 | 2887142022 |
11 | 1251797596 |
12 | 686a93946 |
13 | 3701bb37b |
14 | 1d5629662 |
15 | 11d6ee74c |
hex | ac164a86 |
2887142022 has 64 divisors (see below), whose sum is σ = 6770304000. Its totient is φ = 910160064.
The previous prime is 2887142021. The next prime is 2887142099. The reversal of 2887142022 is 2202417882.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2887142021) 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 31 ways as a sum of consecutive naturals, for example, 97479 + ... + 123597.
It is an arithmetic number, because the mean of its divisors is an integer number (105786000).
Almost surely, 22887142022 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2887142022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3385152000).
2887142022 is an abundant number, since it is smaller than the sum of its proper divisors (3883161978).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2887142022 is a wasteful number, since it uses less digits than its factorization.
2887142022 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26242 (or 26236 counting only the distinct ones).
The product of its (nonzero) digits is 28672, while the sum is 36.
The square root of 2887142022 is about 53732.1321185006. The cubic root of 2887142022 is about 1423.9324347624.
It can be divided in two parts, 288 and 7142022, that added together give a triangular number (7142310 = T3779).
The spelling of 2887142022 in words is "two billion, eight hundred eighty-seven million, one hundred forty-two thousand, twenty-two".
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