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115115023 = 235005001
BaseRepresentation
bin1101101110010…
…00010000001111
322000121110010101
412313020100033
5213432140043
615231151531
72565314212
oct667102017
9260543111
10115115023
1159a85691
12326755a7
131ab065ca
1411407779
15a18d24d
hex6dc840f

115115023 has 4 divisors (see below), whose sum is σ = 120120048. Its totient is φ = 110110000.

The previous prime is 115114969. The next prime is 115115051. The reversal of 115115023 is 320511511.

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 115115023 - 217 = 114983951 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 (115115083) 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 3 ways as a sum of consecutive naturals, for example, 2502478 + ... + 2502523.

It is an arithmetic number, because the mean of its divisors is an integer number (30030012).

Almost surely, 2115115023 is an apocalyptic number.

115115023 is a deficient number, since it is larger than the sum of its proper divisors (5005025).

115115023 is an equidigital number, since it uses as much as digits as its factorization.

115115023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005024.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 115115023 is about 10729.1669294498. The cubic root of 115115023 is about 486.4564896424.

Adding to 115115023 its reverse (320511511), we get a palindrome (435626534).

The spelling of 115115023 in words is "one hundred fifteen million, one hundred fifteen thousand, twenty-three".

Divisors: 1 23 5005001 115115023