Search a number
-
+
52310139 = 3717146527
BaseRepresentation
bin1100011110001…
…1000001111011
310122102122000120
43013203001323
5101342411024
65105104323
71203425460
oct307430173
9118378016
1052310139
1127589422
12156280a3
13aab6a5b
146d39667
1548d4479
hex31e307b

52310139 has 16 divisors (see below), whose sum is σ = 84400128. Its totient is φ = 28132992.

The previous prime is 52310129. The next prime is 52310143. The reversal of 52310139 is 93101325.

It is a happy number.

It is not a de Polignac number, because 52310139 - 29 = 52309627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52310129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72907 + ... + 73620.

It is an arithmetic number, because the mean of its divisors is an integer number (5275008).

Almost surely, 252310139 is an apocalyptic number.

52310139 is a deficient number, since it is larger than the sum of its proper divisors (32089989).

52310139 is a wasteful number, since it uses less digits than its factorization.

52310139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146554.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 52310139 is about 7232.5748527063. The cubic root of 52310139 is about 373.9916948407.

The spelling of 52310139 in words is "fifty-two million, three hundred ten thousand, one hundred thirty-nine".

Divisors: 1 3 7 17 21 51 119 357 146527 439581 1025689 2490959 3077067 7472877 17436713 52310139