Search a number
-
+
115369 = 432683
BaseRepresentation
bin11100001010101001
312212020221
4130022221
512142434
62250041
7660232
oct341251
9185227
10115369
1179751
1256921
1340687
1430089
15242b4
hex1c2a9

115369 has 4 divisors (see below), whose sum is σ = 118096. Its totient is φ = 112644.

The previous prime is 115363. The next prime is 115399. The reversal of 115369 is 963511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 963511 = 3131081.

It is a cyclic number.

It is not a de Polignac number, because 115369 - 23 = 115361 is a prime.

It is a super-2 number, since 2×1153692 = 26620012322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115361) 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, 1299 + ... + 1384.

It is an arithmetic number, because the mean of its divisors is an integer number (29524).

2115369 is an apocalyptic number.

It is an amenable number.

115369 is a deficient number, since it is larger than the sum of its proper divisors (2727).

115369 is an equidigital number, since it uses as much as digits as its factorization.

115369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726.

The product of its digits is 810, while the sum is 25.

The square root of 115369 is about 339.6601242419. The cubic root of 115369 is about 48.6813981383.

It can be divided in two parts, 115 and 369, that added together give a palindrome (484).

The spelling of 115369 in words is "one hundred fifteen thousand, three hundred sixty-nine".

Divisors: 1 43 2683 115369