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115155043 = 235006741
BaseRepresentation
bin1101101110100…
…10000001100011
322000200111000121
412313102001203
5213434430133
615232101111
72565541663
oct667220143
9260614017
10115155043
115a002763
1232694797
131ab1b8a3
14114181a3
15a19a02d
hex6dd2063

115155043 has 4 divisors (see below), whose sum is σ = 120161808. Its totient is φ = 110148280.

The previous prime is 115155041. The next prime is 115155077. The reversal of 115155043 is 340551511.

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: 340551511 = 937136341.

It is a cyclic number.

It is not a de Polignac number, because 115155043 - 21 = 115155041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115154999 and 115155017.

It is not an unprimeable number, because it can be changed into a prime (115155041) 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, 2503348 + ... + 2503393.

It is an arithmetic number, because the mean of its divisors is an integer number (30040452).

Almost surely, 2115155043 is an apocalyptic number.

115155043 is a deficient number, since it is larger than the sum of its proper divisors (5006765).

115155043 is an equidigital number, since it uses as much as digits as its factorization.

115155043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5006764.

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

The square root of 115155043 is about 10731.0317770473. The cubic root of 115155043 is about 486.5128556800.

The spelling of 115155043 in words is "one hundred fifteen million, one hundred fifty-five thousand, forty-three".

Divisors: 1 23 5006741 115155043