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22057363488 = 2531072147329
BaseRepresentation
bin10100100010101110…
…001010100000100000
32002221012211011101110
4110202232022200200
5330133141112423
614044421503320
71410413332116
oct244256124040
962835734343
1022057363488
119399896726
124336b71b40
1321069b7b94
1410d3633ab6
158916b0193
hex522b8a820

22057363488 has 48 divisors (see below), whose sum is σ = 58441733280. Its totient is φ = 7283736576.

The previous prime is 22057363487. The next prime is 22057363501. The reversal of 22057363488 is 88436375022.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×220573634882 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (22057363487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1063393 + ... + 1083936.

It is an arithmetic number, because the mean of its divisors is an integer number (1217536110).

Almost surely, 222057363488 is an apocalyptic number.

It is an amenable number.

22057363488 is an abundant number, since it is smaller than the sum of its proper divisors (36384369792).

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

22057363488 is a wasteful number, since it uses less digits than its factorization.

22057363488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147449 (or 2147441 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 22057363488 in words is "twenty-two billion, fifty-seven million, three hundred sixty-three thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 107 214 321 428 642 856 1284 1712 2568 3424 5136 10272 2147329 4294658 6441987 8589316 12883974 17178632 25767948 34357264 51535896 68714528 103071792 206143584 229764203 459528406 689292609 919056812 1378585218 1838113624 2757170436 3676227248 5514340872 7352454496 11028681744 22057363488