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2220472800 = 2532527133389
BaseRepresentation
bin1000010001011001…
…1011100111100000
312201202012201001100
42010112123213200
514021420112200
61004200234400
7106011464430
oct20426334740
95652181040
102220472800
11a3a443097
1251b76ba00
1329504c040
14170c8a2c0
15cee12d00
hex8459b9e0

2220472800 has 432 divisors, whose sum is σ = 9639695520. Its totient is φ = 468357120.

The previous prime is 2220472781. The next prime is 2220472853. The reversal of 2220472800 is 82740222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 653506 + ... + 656894.

It is an arithmetic number, because the mean of its divisors is an integer number (22314110).

Almost surely, 22220472800 is an apocalyptic number.

2220472800 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 2220472800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4819847760).

2220472800 is an abundant number, since it is smaller than the sum of its proper divisors (7419222720).

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

2220472800 is a wasteful number, since it uses less digits than its factorization.

2220472800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3435 (or 3419 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 2220472800 is about 47121.8930010245. The cubic root of 2220472800 is about 1304.6133526676.

The spelling of 2220472800 in words is "two billion, two hundred twenty million, four hundred seventy-two thousand, eight hundred".