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538742485 = 5432505779
BaseRepresentation
bin100000000111001…
…000111011010101
31101112201221202101
4200013020323111
52100404224420
6125243042101
716231143541
oct4007107325
91345657671
10538742485
11257119226
12130510331
13877cb448
145179ca21
153246c60a
hex201c8ed5

538742485 has 8 divisors (see below), whose sum is σ = 661525920. Its totient is φ = 420970704.

The previous prime is 538742453. The next prime is 538742531. The reversal of 538742485 is 584247835.

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

It is a cyclic number.

It is not a de Polignac number, because 538742485 - 25 = 538742453 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 1252675 + ... + 1253104.

It is an arithmetic number, because the mean of its divisors is an integer number (82690740).

Almost surely, 2538742485 is an apocalyptic number.

It is an amenable number.

538742485 is a deficient number, since it is larger than the sum of its proper divisors (122783435).

538742485 is a wasteful number, since it uses less digits than its factorization.

538742485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505827.

The product of its digits is 1075200, while the sum is 46.

The square root of 538742485 is about 23210.8268917762. The cubic root of 538742485 is about 813.6926786916.

The spelling of 538742485 in words is "five hundred thirty-eight million, seven hundred forty-two thousand, four hundred eighty-five".

Divisors: 1 5 43 215 2505779 12528895 107748497 538742485