Search a number
-
+
538078753 = 3726175557
BaseRepresentation
bin100000000100100…
…110111000100001
31101111111020021201
4200010212320201
52100222010003
6125220521201
716222410502
oct4004467041
91344436251
10538078753
11256805593
12130250201
13876282c4
1451668ba9
153238ab1d
hex20126e21

538078753 has 8 divisors (see below), whose sum is σ = 552932072. Its totient is φ = 523241856.

The previous prime is 538078741. The next prime is 538078759. The reversal of 538078753 is 357870835.

It can be written as a sum of positive squares in 4 ways, for example, as 469718929 + 68359824 = 21673^2 + 8268^2 .

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 538078753 - 229 = 1207841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538078759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94051 + ... + 99607.

It is an arithmetic number, because the mean of its divisors is an integer number (69116509).

Almost surely, 2538078753 is an apocalyptic number.

It is an amenable number.

538078753 is a deficient number, since it is larger than the sum of its proper divisors (14853319).

538078753 is a wasteful number, since it uses less digits than its factorization.

538078753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8211.

The product of its (nonzero) digits is 705600, while the sum is 46.

The square root of 538078753 is about 23196.5245888258. The cubic root of 538078753 is about 813.3583842765.

It can be divided in two parts, 5380787 and 53, that added together give a triangular number (5380840 = T3280).

The spelling of 538078753 in words is "five hundred thirty-eight million, seventy-eight thousand, seven hundred fifty-three".

Divisors: 1 37 2617 5557 96829 205609 14542669 538078753