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115244239 = 1136728547
BaseRepresentation
bin1101101111001…
…11110011001111
322000212000101011
412313213303033
5214000303424
615234030051
72566363015
oct667476317
9260760334
10115244239
115a063780
1232718327
131ab50376
141143c8b5
15a1b6694
hex6de7ccf

115244239 has 8 divisors (see below), whose sum is σ = 126067968. Its totient is φ = 104478360.

The previous prime is 115244219. The next prime is 115244279. The reversal of 115244239 is 932442511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-115244239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115244239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115244209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10237 + ... + 18310.

It is an arithmetic number, because the mean of its divisors is an integer number (15758496).

Almost surely, 2115244239 is an apocalyptic number.

115244239 is a deficient number, since it is larger than the sum of its proper divisors (10823729).

115244239 is a wasteful number, since it uses less digits than its factorization.

115244239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28925.

The product of its digits is 8640, while the sum is 31.

The square root of 115244239 is about 10735.1869569188. The cubic root of 115244239 is about 486.6384365206.

The spelling of 115244239 in words is "one hundred fifteen million, two hundred forty-four thousand, two hundred thirty-nine".

Divisors: 1 11 367 4037 28547 314017 10476749 115244239