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2225705760 = 253253173683
BaseRepresentation
bin1000010010101001…
…1001001100100000
312202010001120022200
42010222121030200
514024240041020
61004504333200
7106104121035
oct20452311440
95663046280
102225705760
11a42397753
12521474200
13296161b75
1417184d38c
15d05e8590
hex84a99320

2225705760 has 288 divisors, whose sum is σ = 7959264768. Its totient is φ = 565678080.

The previous prime is 2225705759. The next prime is 2225705813. The reversal of 2225705760 is 675075222.

2225705760 is a `hidden beast` number, since 2 + 22 + 570 + 5 + 7 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×22257057602 = 9907532260194355200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 47 ways as a sum of consecutive naturals, for example, 3258379 + ... + 3259061.

It is an arithmetic number, because the mean of its divisors is an integer number (27636336).

Almost surely, 22225705760 is an apocalyptic number.

2225705760 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 2225705760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3979632384).

2225705760 is an abundant number, since it is smaller than the sum of its proper divisors (5733559008).

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

2225705760 is a wasteful number, since it uses less digits than its factorization.

2225705760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 2225705760 is about 47177.3861081769. The cubic root of 2225705760 is about 1305.6374038628.

The spelling of 2225705760 in words is "two billion, two hundred twenty-five million, seven hundred five thousand, seven hundred sixty".