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2220203040 = 253511597127
BaseRepresentation
bin1000010001010101…
…1001110000100000
312201201201000000020
42010111121300200
514021332444130
61004150353440
7106006262106
oct20425316040
95651630006
102220203040
11a3a279450
1251b65b880
13294c86313
14170c19c76
15cedace10
hex84559c20

2220203040 has 192 divisors, whose sum is σ = 7759825920. Its totient is φ = 529034240.

The previous prime is 2220203033. The next prime is 2220203057. The reversal of 2220203040 is 403020222.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 307957 + ... + 315083.

It is an arithmetic number, because the mean of its divisors is an integer number (40415760).

Almost surely, 22220203040 is an apocalyptic number.

2220203040 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 2220203040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3879912960).

2220203040 is an abundant number, since it is smaller than the sum of its proper divisors (5539622880).

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

2220203040 is a wasteful number, since it uses less digits than its factorization.

2220203040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7215 (or 7207 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 2220203040 is about 47119.0305502989. The cubic root of 2220203040 is about 1304.5605190623.

Adding to 2220203040 its reverse (403020222), we get a palindrome (2623223262).

The spelling of 2220203040 in words is "two billion, two hundred twenty million, two hundred three thousand, forty".