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115039641 = 338346547
BaseRepresentation
bin1101101101101…
…01110110011001
322000110121201110
412312311312121
5213422232031
615225410533
72564551353
oct666656631
9260417643
10115039641
1159a33a92
1232639a49
131aaab1c2
14113c80d3
15a175c46
hex6db5d99

115039641 has 4 divisors (see below), whose sum is σ = 153386192. Its totient is φ = 76693092.

The previous prime is 115039601. The next prime is 115039643. The reversal of 115039641 is 146930511.

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.

It is not a de Polignac number, because 115039641 - 214 = 115023257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115039599 and 115039608.

It is not an unprimeable number, because it can be changed into a prime (115039643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19173271 + ... + 19173276.

It is an arithmetic number, because the mean of its divisors is an integer number (38346548).

Almost surely, 2115039641 is an apocalyptic number.

It is an amenable number.

115039641 is a deficient number, since it is larger than the sum of its proper divisors (38346551).

115039641 is an equidigital number, since it uses as much as digits as its factorization.

115039641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38346550.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 115039641 is about 10725.6534066695. The cubic root of 115039641 is about 486.3502826233.

The spelling of 115039641 in words is "one hundred fifteen million, thirty-nine thousand, six hundred forty-one".

Divisors: 1 3 38346547 115039641