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115457 = 263439
BaseRepresentation
bin11100001100000001
312212101012
4130030001
512143312
62250305
7660416
oct341401
9185335
10115457
1179821
1256995
1340724
143010d
1524322
hex1c301

115457 has 4 divisors (see below), whose sum is σ = 116160. Its totient is φ = 114756.

The previous prime is 115429. The next prime is 115459. The reversal of 115457 is 754511.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 754511 = 1744383.

It is a cyclic number.

It is not a de Polignac number, because 115457 - 28 = 115201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115459) 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, 44 + ... + 482.

It is an arithmetic number, because the mean of its divisors is an integer number (29040).

2115457 is an apocalyptic number.

It is an amenable number.

115457 is a deficient number, since it is larger than the sum of its proper divisors (703).

115457 is an equidigital number, since it uses as much as digits as its factorization.

115457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702.

The product of its digits is 700, while the sum is 23.

The square root of 115457 is about 339.7896408074. The cubic root of 115457 is about 48.6937725608.

Adding to 115457 its reverse (754511), we get a palindrome (869968).

The spelling of 115457 in words is "one hundred fifteen thousand, four hundred fifty-seven".

Divisors: 1 263 439 115457