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504542143 = 73183109257
BaseRepresentation
bin11110000100101…
…011001110111111
31022011101101201001
4132010223032333
52013130322033
6122022031131
715334352230
oct3604531677
91264341631
10504542143
11239889a86
12120b784a7
13806b5661
144b019087
152e463e7d
hex1e12b3bf

504542143 has 32 divisors (see below), whose sum is σ = 610283520. Its totient is φ = 408084480.

The previous prime is 504542141. The next prime is 504542147. The reversal of 504542143 is 341245405.

It is a cyclic number.

It is not a de Polignac number, because 504542143 - 21 = 504542141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504542141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1963071 + ... + 1963327.

It is an arithmetic number, because the mean of its divisors is an integer number (19071360).

Almost surely, 2504542143 is an apocalyptic number.

504542143 is a deficient number, since it is larger than the sum of its proper divisors (105741377).

504542143 is a wasteful number, since it uses less digits than its factorization.

504542143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 504542143 is about 22462.0155596064. The cubic root of 504542143 is about 796.0966856244.

Adding to 504542143 its reverse (341245405), we get a palindrome (845787548).

The spelling of 504542143 in words is "five hundred four million, five hundred forty-two thousand, one hundred forty-three".

Divisors: 1 7 31 83 109 217 257 581 763 1799 2573 3379 7967 9047 18011 21331 23653 28013 55769 63329 149317 196091 280457 661261 868403 1963199 2325079 4628827 6078821 16275553 72077449 504542143