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2130 = 23571
BaseRepresentation
bin100001010010
32220220
4201102
532010
613510
76132
oct4122
92826
102130
111667
121296
13c7b
14ac2
15970
hex852

2130 has 16 divisors (see below), whose sum is σ = 5184. Its totient is φ = 560.

The previous prime is 2129. The next prime is 2131. The reversal of 2130 is 312.

2130 is nontrivially palindromic in base 4.

It is an interprime number because it is at equal distance from previous prime (2129) and next prime (2131).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a d-powerful number, because it can be written as 211 + 34 + 1 + 0 .

It is a Curzon number.

It is a plaindrome in base 11.

It is a nialpdrome in base 15 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6 + ... + 65.

It is an arithmetic number, because the mean of its divisors is an integer number (324).

22130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2592).

2130 is an abundant number, since it is smaller than the sum of its proper divisors (3054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2130 is a wasteful number, since it uses less digits than its factorization.

2130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81.

The product of its (nonzero) digits is 6, while the sum is 6.

The square root of 2130 is about 46.1519230369. The cubic root of 2130 is about 12.8664835122.

Adding to 2130 its reverse (312), we get a palindrome (2442).

It can be divided in two parts, 21 and 30, that multiplied together give a triangular number (630 = T35).

The spelling of 2130 in words is "two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 71 142 213 355 426 710 1065 2130