Search a number
-
+
2110212100 = 2252432292143
BaseRepresentation
bin111110111000111…
…0100100000000100
312110001201212210201
41331301310200010
513310203241400
6545221100244
7103202335603
oct17561644004
95401655721
102110212100
11993183647
124aa857684
13278255119
14160387a3a
15c53d306a
hex7dc74804

2110212100 has 72 divisors (see below), whose sum is σ = 4708309760. Its totient is φ = 820471680.

The previous prime is 2110212079. The next prime is 2110212103. The reversal of 2110212100 is 12120112.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (2110212103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 983629 + ... + 985771.

Almost surely, 22110212100 is an apocalyptic number.

2110212100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2110212100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2354154880).

2110212100 is an abundant number, since it is smaller than the sum of its proper divisors (2598097660).

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

2110212100 is a wasteful number, since it uses less digits than its factorization.

2110212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429 (or 2422 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2110212100 is about 45937.0449637327. The cubic root of 2110212100 is about 1282.6515874511.

Adding to 2110212100 its reverse (12120112), we get a palindrome (2122332212).

The spelling of 2110212100 in words is "two billion, one hundred ten million, two hundred twelve thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 43 50 86 100 172 215 229 430 458 860 916 1075 1145 2143 2150 2290 4286 4300 4580 5725 8572 9847 10715 11450 19694 21430 22900 39388 42860 49235 53575 92149 98470 107150 184298 196940 214300 246175 368596 460745 490747 492350 921490 981494 984700 1842980 1962988 2303725 2453735 4607450 4907470 9214900 9814940 12268675 21102121 24537350 42204242 49074700 84408484 105510605 211021210 422042420 527553025 1055106050 2110212100