Search a number
-
+
538857067 = 7229573719
BaseRepresentation
bin100000000111100…
…100111001101011
31101112221202221011
4200013210321223
52100421411232
6125245324351
716232131600
oct4007447153
91345852834
10538857067
11257197321
121305666b7
138783b648
14517cc6a7
1532491547
hex201e4e6b

538857067 has 12 divisors (see below), whose sum is σ = 627214320. Its totient is φ = 461597136.

The previous prime is 538857049. The next prime is 538857071. The reversal of 538857067 is 760758835.

It is a de Polignac number, because none of the positive numbers 2k-538857067 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 538857067.

It is not an unprimeable number, because it can be changed into a prime (538857017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143034 + ... + 146752.

It is an arithmetic number, because the mean of its divisors is an integer number (52267860).

Almost surely, 2538857067 is an apocalyptic number.

538857067 is a deficient number, since it is larger than the sum of its proper divisors (88357253).

538857067 is a wasteful number, since it uses less digits than its factorization.

538857067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6690 (or 6683 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 49.

The square root of 538857067 is about 23213.2950483123. The cubic root of 538857067 is about 813.7503611206.

The spelling of 538857067 in words is "five hundred thirty-eight million, eight hundred fifty-seven thousand, sixty-seven".

Divisors: 1 7 49 2957 3719 20699 26033 144893 182231 10997083 76979581 538857067