Search a number
-
+
538839074 = 2972777521
BaseRepresentation
bin100000000111100…
…000100000100010
31101112220212020202
4200013200200202
52100420322244
6125245105202
716232025254
oct4007404042
91345825222
10538839074
11257184854
12130558202
13878333b7
14517c5cd4
153248b04e
hex201e0822

538839074 has 8 divisors (see below), whose sum is σ = 816591468. Its totient is φ = 266641920.

The previous prime is 538839001. The next prime is 538839079. The reversal of 538839074 is 470938835.

It can be written as a sum of positive squares in 2 ways, for example, as 525097225 + 13741849 = 22915^2 + 3707^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (538839079) 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, 1388567 + ... + 1388954.

Almost surely, 2538839074 is an apocalyptic number.

538839074 is a deficient number, since it is larger than the sum of its proper divisors (277752394).

538839074 is a wasteful number, since it uses less digits than its factorization.

538839074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777620.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 538839074 is about 23212.9074869996. The cubic root of 538839074 is about 813.7413036951.

The spelling of 538839074 in words is "five hundred thirty-eight million, eight hundred thirty-nine thousand, seventy-four".

Divisors: 1 2 97 194 2777521 5555042 269419537 538839074