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545355143 = 672121487
BaseRepresentation
bin100000100000010…
…111010110000111
31102000011220121122
4200200113112013
52104102331033
6130040504155
716341304454
oct4040272607
91360156548
10545355143
1125a925433
1213277b05b
1388ca5268
145260082b
1532d26a98
hex20817587

545355143 has 6 divisors (see below), whose sum is σ = 553620816. Its totient is φ = 537211092.

The previous prime is 545355133. The next prime is 545355191. The reversal of 545355143 is 341553545.

It is not a de Polignac number, because 545355143 - 24 = 545355127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545355133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56255 + ... + 65232.

It is an arithmetic number, because the mean of its divisors is an integer number (92270136).

Almost surely, 2545355143 is an apocalyptic number.

545355143 is a deficient number, since it is larger than the sum of its proper divisors (8265673).

545355143 is an equidigital number, since it uses as much as digits as its factorization.

545355143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121621 (or 121554 counting only the distinct ones).

The product of its digits is 90000, while the sum is 35.

The square root of 545355143 is about 23352.8401484702. The cubic root of 545355143 is about 817.0083046717.

The spelling of 545355143 in words is "five hundred forty-five million, three hundred fifty-five thousand, one hundred forty-three".

Divisors: 1 67 4489 121487 8139629 545355143