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545331027 = 31930193169
BaseRepresentation
bin100000100000010…
…001011101010011
31102000010200112110
4200200101131103
52104101043102
6130040200403
716341144243
oct4040213523
91360120473
10545331027
1125a9092aa
12132769103
1388c972a7
14525d5b23
1532d1e86c
hex20811753

545331027 has 16 divisors (see below), whose sum is σ = 765872000. Its totient is φ = 344196864.

The previous prime is 545331011. The next prime is 545331047. The reversal of 545331027 is 720133545.

It is not a de Polignac number, because 545331027 - 24 = 545331011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545330985 and 545331003.

It is not an unprimeable number, because it can be changed into a prime (545331047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170499 + ... + 173667.

It is an arithmetic number, because the mean of its divisors is an integer number (47867000).

Almost surely, 2545331027 is an apocalyptic number.

545331027 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

545331027 is a deficient number, since it is larger than the sum of its proper divisors (220540973).

545331027 is a wasteful number, since it uses less digits than its factorization.

545331027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6210.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 545331027 is about 23352.3238029966. The cubic root of 545331027 is about 816.9962615942.

The spelling of 545331027 in words is "five hundred forty-five million, three hundred thirty-one thousand, twenty-seven".

Divisors: 1 3 19 57 3019 3169 9057 9507 57361 60211 172083 180633 9567211 28701633 181777009 545331027