Search a number
-
+
2112241040 = 2457213181229
BaseRepresentation
bin111110111100110…
…0011110110010000
312110012112221222122
41331321203312100
513311213203130
6545332353412
7103225516100
oct17571436620
95405487878
102112241040
11994339a58
124ab475868
132787b5790
14160755200
15c56842e5
hex7de63d90

2112241040 has 240 divisors, whose sum is σ = 6213196080. Its totient is φ = 661893120.

The previous prime is 2112241009. The next prime is 2112241069. The reversal of 2112241040 is 401422112.

It can be written as a sum of positive squares in 8 ways, for example, as 243235216 + 1869005824 = 15596^2 + 43232^2 .

It is a super-2 number, since 2×21122410402 = 8923124422120563200, which contains 22 as substring.

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, 9223646 + ... + 9223874.

It is an arithmetic number, because the mean of its divisors is an integer number (25888317).

Almost surely, 22112241040 is an apocalyptic number.

2112241040 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 2112241040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3106598040).

2112241040 is an abundant number, since it is smaller than the sum of its proper divisors (4100955040).

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

2112241040 is a wasteful number, since it uses less digits than its factorization.

2112241040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2112241040 is about 45959.1235773704. The cubic root of 2112241040 is about 1283.0625397423.

Adding to 2112241040 its reverse (401422112), we get a palindrome (2513663152).

The spelling of 2112241040 in words is "two billion, one hundred twelve million, two hundred forty-one thousand, forty".