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115668443 = 1129715107
BaseRepresentation
bin1101110010011…
…11010111011011
322001122120021102
412321033113123
5214102342233
615251102015
72603110532
oct671172733
9261576242
10115668443
115a323460
12328a190b
131ac6b487
141150d319
15a24c1e8
hex6e4f5db

115668443 has 16 divisors (see below), whose sum is σ = 132399360. Its totient is φ = 100077600.

The previous prime is 115668439. The next prime is 115668451. The reversal of 115668443 is 344866511.

It is a cyclic number.

It is not a de Polignac number, because 115668443 - 22 = 115668439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115668397 and 115668406.

It is not an unprimeable number, because it can be changed into a prime (115668463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20096 + ... + 25202.

It is an arithmetic number, because the mean of its divisors is an integer number (8274960).

Almost surely, 2115668443 is an apocalyptic number.

115668443 is a deficient number, since it is larger than the sum of its proper divisors (16730917).

115668443 is a wasteful number, since it uses less digits than its factorization.

115668443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5218.

The product of its digits is 69120, while the sum is 38.

The square root of 115668443 is about 10754.9264525612. The cubic root of 115668443 is about 487.2347966259.

The spelling of 115668443 in words is "one hundred fifteen million, six hundred sixty-eight thousand, four hundred forty-three".

Divisors: 1 11 29 71 319 781 2059 5107 22649 56177 148103 362597 1629133 3988567 10515313 115668443