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115994247 = 3179412417
BaseRepresentation
bin1101110100111…
…10111010000111
322002021010012020
412322132322013
5214143303442
615302054223
72605635435
oct672367207
9262233166
10115994247
115a526216
1232a1a373
131b053865
1411595d55
15a2b39ec
hex6e9ee87

115994247 has 16 divisors (see below), whose sum is σ = 163998432. Its totient is φ = 72673280.

The previous prime is 115994237. The next prime is 115994273. The reversal of 115994247 is 742499511.

It is a cyclic number.

It is not a de Polignac number, because 115994247 - 214 = 115977863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115994199 and 115994208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115994237) 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 15 ways as a sum of consecutive naturals, for example, 46783 + ... + 49199.

It is an arithmetic number, because the mean of its divisors is an integer number (10249902).

Almost surely, 2115994247 is an apocalyptic number.

115994247 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

115994247 is a deficient number, since it is larger than the sum of its proper divisors (48004185).

115994247 is a wasteful number, since it uses less digits than its factorization.

115994247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3378.

The product of its digits is 90720, while the sum is 42.

The square root of 115994247 is about 10770.0625346374. The cubic root of 115994247 is about 487.6918335100.

The spelling of 115994247 in words is "one hundred fifteen million, nine hundred ninety-four thousand, two hundred forty-seven".

Divisors: 1 3 17 51 941 2417 2823 7251 15997 41089 47991 123267 2274397 6823191 38664749 115994247