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538460045 = 5731475233
BaseRepresentation
bin100000000110000…
…011111110001101
31101112012121022122
4200012003332031
52100321210140
6125233022325
716225556234
oct4006037615
91345177278
10538460045
11256a46002
121303b49a5
138772ca16
1451727b1b
1532413ab5
hex20183f8d

538460045 has 8 divisors (see below), whose sum is σ = 655003896. Its totient is φ = 424866816.

The previous prime is 538460033. The next prime is 538460077. The reversal of 538460045 is 540064835.

It can be written as a sum of positive squares in 4 ways, for example, as 151708489 + 386751556 = 12317^2 + 19666^2 .

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 538460045 - 216 = 538394509 is a prime.

It is a super-4 number, since 4×5384600454 (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 538459987 and 538460014.

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, 737252 + ... + 737981.

It is an arithmetic number, because the mean of its divisors is an integer number (81875487).

Almost surely, 2538460045 is an apocalyptic number.

It is an amenable number.

538460045 is a deficient number, since it is larger than the sum of its proper divisors (116543851).

538460045 is a wasteful number, since it uses less digits than its factorization.

538460045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475311.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 538460045 is about 23204.7418645414. The cubic root of 538460045 is about 813.5504588990.

The spelling of 538460045 in words is "five hundred thirty-eight million, four hundred sixty thousand, forty-five".

Divisors: 1 5 73 365 1475233 7376165 107692009 538460045