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115423243 = 138878711
BaseRepresentation
bin1101110000100…
…11100000001011
322001012002220221
412320103200023
5214022020433
615241530511
72601036625
oct670234013
9261162827
10115423243
115a176211
12327a3a37
131abb39a0
1411487c15
15a1ee72d
hex6e1380b

115423243 has 4 divisors (see below), whose sum is σ = 124301968. Its totient is φ = 106544520.

The previous prime is 115423213. The next prime is 115423247. The reversal of 115423243 is 342324511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115423243 - 29 = 115422731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115423247) 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, 4439343 + ... + 4439368.

It is an arithmetic number, because the mean of its divisors is an integer number (31075492).

Almost surely, 2115423243 is an apocalyptic number.

115423243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

115423243 is a deficient number, since it is larger than the sum of its proper divisors (8878725).

115423243 is an equidigital number, since it uses as much as digits as its factorization.

115423243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8878724.

The product of its digits is 2880, while the sum is 25.

The square root of 115423243 is about 10743.5209777800. The cubic root of 115423243 is about 486.8902644783.

Adding to 115423243 its reverse (342324511), we get a palindrome (457747754).

The spelling of 115423243 in words is "one hundred fifteen million, four hundred twenty-three thousand, two hundred forty-three".

Divisors: 1 13 8878711 115423243