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55760765 = 5172922621
BaseRepresentation
bin1101010010110…
…1011101111101
310212220221101112
43110231131331
5103233321030
65311051405
71244646554
oct324553575
9125827345
1055760765
1129525985
1216810b65
13b724548
147596d9b
154d66a95
hex352d77d

55760765 has 16 divisors (see below), whose sum is σ = 73295280. Its totient is φ = 40535040.

The previous prime is 55760729. The next prime is 55760767. The reversal of 55760765 is 56706755.

It can be written as a sum of positive squares in 8 ways, for example, as 8797156 + 46963609 = 2966^2 + 6853^2 .

It is not a de Polignac number, because 55760765 - 26 = 55760701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55760767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8846 + ... + 13775.

It is an arithmetic number, because the mean of its divisors is an integer number (4580955).

Almost surely, 255760765 is an apocalyptic number.

It is an amenable number.

55760765 is a deficient number, since it is larger than the sum of its proper divisors (17534515).

55760765 is a wasteful number, since it uses less digits than its factorization.

55760765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22672.

The product of its (nonzero) digits is 220500, while the sum is 41.

The square root of 55760765 is about 7467.3131044573. The cubic root of 55760765 is about 382.0406492565.

The spelling of 55760765 in words is "fifty-five million, seven hundred sixty thousand, seven hundred sixty-five".

Divisors: 1 5 17 29 85 145 493 2465 22621 113105 384557 656009 1922785 3280045 11152153 55760765