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545666485 = 57138314449
BaseRepresentation
bin100000100001100…
…011010110110101
31102000202201200211
4200201203112311
52104142311420
6130051305421
716344042250
oct4041432665
91360681624
10545666485
11260018341
121328ab271
1389083ba0
1452682097
1532d88e5a
hex208635b5

545666485 has 32 divisors (see below), whose sum is σ = 815673600. Its totient is φ = 341203968.

The previous prime is 545666477. The next prime is 545666501. The reversal of 545666485 is 584666545.

It is not a de Polignac number, because 545666485 - 23 = 545666477 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 31 ways as a sum of consecutive naturals, for example, 30541 + ... + 44989.

It is an arithmetic number, because the mean of its divisors is an integer number (25489800).

Almost surely, 2545666485 is an apocalyptic number.

It is an amenable number.

545666485 is a deficient number, since it is larger than the sum of its proper divisors (270007115).

545666485 is a wasteful number, since it uses less digits than its factorization.

545666485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14557.

The product of its digits is 3456000, while the sum is 49.

The square root of 545666485 is about 23359.5052387674. The cubic root of 545666485 is about 817.1637511497.

The spelling of 545666485 in words is "five hundred forty-five million, six hundred sixty-six thousand, four hundred eighty-five".

Divisors: 1 5 7 13 35 65 83 91 415 455 581 1079 2905 5395 7553 14449 37765 72245 101143 187837 505715 939185 1199267 1314859 5996335 6574295 8394869 15590471 41974345 77952355 109133297 545666485