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1042305115 = 5208461023
BaseRepresentation
bin111110001000000…
…101000001011011
32200122021120211011
4332020011001123
54113312230430
6251232114351
734554306265
oct7610050133
92618246734
101042305115
11495399295
122510959b7
13137c2ccb7
149c600b35
156178b22a
hex3e20505b

1042305115 has 4 divisors (see below), whose sum is σ = 1250766144. Its totient is φ = 833844088.

The previous prime is 1042305073. The next prime is 1042305149. The reversal of 1042305115 is 5115032401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5115032401 = 7370068937.

It is a cyclic number.

It is not a de Polignac number, because 1042305115 - 217 = 1042174043 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 104230507 + ... + 104230516.

It is an arithmetic number, because the mean of its divisors is an integer number (312691536).

Almost surely, 21042305115 is an apocalyptic number.

1042305115 is a deficient number, since it is larger than the sum of its proper divisors (208461029).

1042305115 is an equidigital number, since it uses as much as digits as its factorization.

1042305115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208461028.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1042305115 is about 32284.7505023657. The cubic root of 1042305115 is about 1013.9073927903.

Adding to 1042305115 its reverse (5115032401), we get a palindrome (6157337516).

The spelling of 1042305115 in words is "one billion, forty-two million, three hundred five thousand, one hundred fifteen".

Divisors: 1 5 208461023 1042305115