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538524407 = 2056326189
BaseRepresentation
bin100000000110010…
…011101011110111
31101112022212121102
4200012103223313
52100330240112
6125234240315
716226245001
oct4006235367
91345285542
10538524407
11256a8a3a3
1213042609b
13877530c5
1451743371
1532427bc2
hex20193af7

538524407 has 4 divisors (see below), whose sum is σ = 538571160. Its totient is φ = 538477656.

The previous prime is 538524401. The next prime is 538524443. The reversal of 538524407 is 704425835.

It is a happy number.

538524407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 704425835 = 5140885167.

It is a cyclic number.

It is not a de Polignac number, because 538524407 - 210 = 538523383 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 (538524401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7469 + ... + 33657.

It is an arithmetic number, because the mean of its divisors is an integer number (134642790).

Almost surely, 2538524407 is an apocalyptic number.

538524407 is a deficient number, since it is larger than the sum of its proper divisors (46753).

538524407 is a wasteful number, since it uses less digits than its factorization.

538524407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46752.

The product of its (nonzero) digits is 134400, while the sum is 38.

The square root of 538524407 is about 23206.1286517161. The cubic root of 538524407 is about 813.5828721046.

It can be divided in two parts, 5385 and 24407, that added together give a palindrome (29792).

The spelling of 538524407 in words is "five hundred thirty-eight million, five hundred twenty-four thousand, four hundred seven".

Divisors: 1 20563 26189 538524407