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543241861 = 3131355987
BaseRepresentation
bin100000011000010…
…011011010000101
31101212012112201221
4200120103122011
52103032214421
6125523320341
716314323341
oct4030233205
91355175657
10543241861
11259711718
12131b200b1
13887153b6
1452210621
1532a5a841
hex20613685

543241861 has 8 divisors (see below), whose sum is σ = 562567424. Its totient is φ = 524028960.

The previous prime is 543241813. The next prime is 543241921. The reversal of 543241861 is 168142345.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 543241861 - 211 = 543239813 is a prime.

It is a super-2 number, since 2×5432418612 = 590223439085486642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543241961) 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 7 ways as a sum of consecutive naturals, for example, 18291 + ... + 37696.

It is an arithmetic number, because the mean of its divisors is an integer number (70320928).

Almost surely, 2543241861 is an apocalyptic number.

It is an amenable number.

543241861 is a deficient number, since it is larger than the sum of its proper divisors (19325563).

543241861 is a wasteful number, since it uses less digits than its factorization.

543241861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56331.

The product of its digits is 23040, while the sum is 34.

The square root of 543241861 is about 23307.5494421872. The cubic root of 543241861 is about 815.9516208061.

The spelling of 543241861 in words is "five hundred forty-three million, two hundred forty-one thousand, eight hundred sixty-one".

Divisors: 1 31 313 9703 55987 1735597 17523931 543241861