Search a number
-
+
2013333120 = 273251729709
BaseRepresentation
bin111100000000001…
…0000011010000000
312012022102220211100
41320000100122000
513110403124440
6531440414400
7100615022601
oct17000203200
95168386740
102013333120
11943523a77
12482317400
13261165096
14151569da8
15bbb48230
hex78010680

2013333120 has 384 divisors, whose sum is σ = 7625826000. Its totient is φ = 487194624.

The previous prime is 2013333107. The next prime is 2013333139. The reversal of 2013333120 is 213333102.

2013333120 is a `hidden beast` number, since 20 + 1 + 333 + 312 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 773729856 + 1239603264 = 27816^2 + 35208^2 .

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2013333093 and 2013333102.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2839326 + ... + 2840034.

Almost surely, 22013333120 is an apocalyptic number.

2013333120 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 2013333120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3812913000).

2013333120 is an abundant number, since it is smaller than the sum of its proper divisors (5612492880).

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

2013333120 is a wasteful number, since it uses less digits than its factorization.

2013333120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780 (or 765 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 2013333120 is about 44870.1807440086. The cubic root of 2013333120 is about 1262.7146309606.

Subtracting from 2013333120 its sum of digits (18), we obtain a palindrome (2013333102).

Adding to 2013333120 its reverse (213333102), we get a palindrome (2226666222).

The spelling of 2013333120 in words is "two billion, thirteen million, three hundred thirty-three thousand, one hundred twenty".