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2011002240 = 2735132331113
BaseRepresentation
bin111011111011101…
…0111010110000000
312012011001111110110
41313313113112000
513104304032430
6531314431320
7100556144202
oct16767272600
95164044413
102011002240
11942181825
12481592540
1326082a170
14151120772
15bb8377b0
hex77dd7580

2011002240 has 512 divisors, whose sum is σ = 7501455360. Its totient is φ = 454164480.

The previous prime is 2011002239. The next prime is 2011002247. The reversal of 2011002240 is 422001102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011002247) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17796424 + ... + 17796536.

It is an arithmetic number, because the mean of its divisors is an integer number (14651280).

Almost surely, 22011002240 is an apocalyptic number.

2011002240 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 2011002240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3750727680).

2011002240 is an abundant number, since it is smaller than the sum of its proper divisors (5490453120).

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

2011002240 is a wasteful number, since it uses less digits than its factorization.

2011002240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2011002240 is about 44844.1996249236. The cubic root of 2011002240 is about 1262.2271519641.

Adding to 2011002240 its reverse (422001102), we get a palindrome (2433003342).

The spelling of 2011002240 in words is "two billion, eleven million, two thousand, two hundred forty".