Search a number
-
+
115015453 = 716430779
BaseRepresentation
bin1101101101011…
…11111100011101
322000102101112121
412312233330131
5213420443303
615225102541
72564421010
oct666577435
9260371477
10115015453
1159a178a3
1232627a51
131aaa01a7
14113bd377
15a16d9bd
hex6daff1d

115015453 has 4 divisors (see below), whose sum is σ = 131446240. Its totient is φ = 98584668.

The previous prime is 115015451. The next prime is 115015457. The reversal of 115015453 is 354510511.

It is a happy number.

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: 354510511 = 1721205991.

It is not a de Polignac number, because 115015453 - 21 = 115015451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115015451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8215383 + ... + 8215396.

It is an arithmetic number, because the mean of its divisors is an integer number (32861560).

Almost surely, 2115015453 is an apocalyptic number.

It is an amenable number.

115015453 is a deficient number, since it is larger than the sum of its proper divisors (16430787).

115015453 is an equidigital number, since it uses as much as digits as its factorization.

115015453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16430786.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 115015453 is about 10724.5257704012. The cubic root of 115015453 is about 486.3161938949.

Adding to 115015453 its reverse (354510511), we get a palindrome (469525964).

The spelling of 115015453 in words is "one hundred fifteen million, fifteen thousand, four hundred fifty-three".

Divisors: 1 7 16430779 115015453