Search a number
-
+
115141 = 1317521
BaseRepresentation
bin11100000111000101
312211221111
4130013011
512141031
62245021
7656455
oct340705
9184844
10115141
1179564
1256771
1340540
142dd65
15241b1
hex1c1c5

115141 has 8 divisors (see below), whose sum is σ = 131544. Its totient is φ = 99840.

The previous prime is 115133. The next prime is 115151. The reversal of 115141 is 141511.

Adding to 115141 its reverse (141511), we get a palindrome (256652).

It can be divided in two parts, 115 and 141, that added together give a 8-th power (256 = 28).

It can be written as a sum of positive squares in 4 ways, for example, as 6241 + 108900 = 79^2 + 330^2 .

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

It is not a de Polignac number, because 115141 - 23 = 115133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115151) 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, 40 + ... + 481.

It is an arithmetic number, because the mean of its divisors is an integer number (16443).

2115141 is an apocalyptic number.

It is an amenable number.

115141 is a deficient number, since it is larger than the sum of its proper divisors (16403).

115141 is a wasteful number, since it uses less digits than its factorization.

115141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551.

The product of its digits is 20, while the sum is 13.

The square root of 115141 is about 339.3243286297. The cubic root of 115141 is about 48.6493078350.

The spelling of 115141 in words is "one hundred fifteen thousand, one hundred forty-one".

Divisors: 1 13 17 221 521 6773 8857 115141