Search a number
-
+
2132810240 = 29511233789
BaseRepresentation
bin111111100100000…
…0001101000000000
312111122020222121212
41333020001220000
513331444411430
6551345305252
7103565405441
oct17710015000
95448228555
102132810240
119a4a089a0
124b6335228
1327cb37cc2
1416338b2c8
15c7398b95
hex7f201a00

2132810240 has 320 divisors, whose sum is σ = 6045684480. Its totient is φ = 713687040.

The previous prime is 2132810231. The next prime is 2132810279. The reversal of 2132810240 is 420182312.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23964116 + ... + 23964204.

It is an arithmetic number, because the mean of its divisors is an integer number (18892764).

Almost surely, 22132810240 is an apocalyptic number.

2132810240 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 2132810240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3022842240).

2132810240 is an abundant number, since it is smaller than the sum of its proper divisors (3912874240).

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

2132810240 is a wasteful number, since it uses less digits than its factorization.

2132810240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 2132810240 is about 46182.3585365668. The cubic root of 2132810240 is about 1287.2139539857.

Adding to 2132810240 its reverse (420182312), we get a palindrome (2552992552).

The spelling of 2132810240 in words is "two billion, one hundred thirty-two million, eight hundred ten thousand, two hundred forty".