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55744768 = 281712809
BaseRepresentation
bin1101010010100…
…1100100000000
310212220010110001
43110221210000
5103232313033
65310445344
71244552122
oct324514400
9125803401
1055744768
1129514962
1216803854
13b71a191
147591212
154d61e7d
hex3529900

55744768 has 36 divisors (see below), whose sum is σ = 117826380. Its totient is φ = 26230784.

The previous prime is 55744763. The next prime is 55744781. The reversal of 55744768 is 86744755.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30824704 + 24920064 = 5552^2 + 4992^2 .

It is not an unprimeable number, because it can be changed into a prime (55744763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2053 + ... + 10756.

It is an arithmetic number, because the mean of its divisors is an integer number (3272955).

Almost surely, 255744768 is an apocalyptic number.

It is an amenable number.

55744768 is an abundant number, since it is smaller than the sum of its proper divisors (62081612).

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

55744768 is a wasteful number, since it uses less digits than its factorization.

55744768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12842 (or 12828 counting only the distinct ones).

The product of its digits is 940800, while the sum is 46.

The square root of 55744768 is about 7466.2418926793. The cubic root of 55744768 is about 382.0041116851.

The spelling of 55744768 in words is "fifty-five million, seven hundred forty-four thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 16 17 32 34 64 68 128 136 256 272 544 1088 2176 4352 12809 25618 51236 102472 204944 217753 409888 435506 819776 871012 1639552 1742024 3279104 3484048 6968096 13936192 27872384 55744768