Search a number
-
+
115444121 = 1343206519
BaseRepresentation
bin1101110000110…
…00100110011001
322001020011120012
412320120212121
5214023202441
615242211305
72601154532
oct670304631
9261204505
10115444121
115a18a971
12327b3b35
131abc0340
1411491689
15a2059eb
hex6e18999

115444121 has 8 divisors (see below), whose sum is σ = 127216320. Its totient is φ = 104085072.

The previous prime is 115444097. The next prime is 115444139. The reversal of 115444121 is 121444511.

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

It is not a de Polignac number, because 115444121 - 214 = 115427737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115444321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102701 + ... + 103818.

It is an arithmetic number, because the mean of its divisors is an integer number (15902040).

Almost surely, 2115444121 is an apocalyptic number.

It is an amenable number.

115444121 is a deficient number, since it is larger than the sum of its proper divisors (11772199).

115444121 is a wasteful number, since it uses less digits than its factorization.

115444121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206575.

The product of its digits is 640, while the sum is 23.

The square root of 115444121 is about 10744.4925892291. The cubic root of 115444121 is about 486.9196192882.

Adding to 115444121 its reverse (121444511), we get a palindrome (236888632).

The spelling of 115444121 in words is "one hundred fifteen million, four hundred forty-four thousand, one hundred twenty-one".

Divisors: 1 13 43 559 206519 2684747 8880317 115444121