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1222054368 = 25314538761
BaseRepresentation
bin100100011010111…
…0001000111100000
310011011111210102220
41020311301013200
510000321214433
6321132511040
742166201503
oct11065610740
93134453386
101222054368
115778aa597
122a131b480
131662469c2
14b843113a
15724452b3
hex48d711e0

1222054368 has 48 divisors (see below), whose sum is σ = 3210466896. Its totient is φ = 407024640.

The previous prime is 1222054349. The next prime is 1222054373. The reversal of 1222054368 is 8634502221.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135108 + ... + 143868.

It is an arithmetic number, because the mean of its divisors is an integer number (66884727).

Almost surely, 21222054368 is an apocalyptic number.

It is an amenable number.

1222054368 is an abundant number, since it is smaller than the sum of its proper divisors (1988412528).

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

1222054368 is a wasteful number, since it uses less digits than its factorization.

1222054368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10227 (or 10219 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 1222054368 is about 34957.8942157562. The cubic root of 1222054368 is about 1069.1291624687.

Adding to 1222054368 its reverse (8634502221), we get a palindrome (9856556589).

The spelling of 1222054368 in words is "one billion, two hundred twenty-two million, fifty-four thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 1453 2906 4359 5812 8718 8761 11624 17436 17522 23248 26283 34872 35044 46496 52566 69744 70088 105132 139488 140176 210264 280352 420528 841056 12729733 25459466 38189199 50918932 76378398 101837864 152756796 203675728 305513592 407351456 611027184 1222054368