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115671242 = 257835621
BaseRepresentation
bin1101110010100…
…00000011001010
322001122201010002
412321100003022
5214102434432
615251123002
72603121641
oct671200312
9261581102
10115671242
115a325575
12328a3462
131ac6c82b
1411510358
15a24ce62
hex6e500ca

115671242 has 4 divisors (see below), whose sum is σ = 173506866. Its totient is φ = 57835620.

The previous prime is 115671203. The next prime is 115671263. The reversal of 115671242 is 242176511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242176511 = 839288649.

It can be written as a sum of positive squares in only one way, i.e., 83192641 + 32478601 = 9121^2 + 5699^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28917809 + ... + 28917812.

Almost surely, 2115671242 is an apocalyptic number.

115671242 is a deficient number, since it is larger than the sum of its proper divisors (57835624).

115671242 is an equidigital number, since it uses as much as digits as its factorization.

115671242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57835623.

The product of its digits is 3360, while the sum is 29.

The square root of 115671242 is about 10755.0565781868. The cubic root of 115671242 is about 487.2387267073.

The spelling of 115671242 in words is "one hundred fifteen million, six hundred seventy-one thousand, two hundred forty-two".

Divisors: 1 2 57835621 115671242