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115640593 = 196790841
BaseRepresentation
bin1101110010010…
…00100100010001
322001121011001221
412321020210101
5214100444333
615250325041
72602633405
oct671104421
9261534057
10115640593
115a304542
1232889781
131ac5b8b3
1411503105
15a243d2d
hex6e48911

115640593 has 8 divisors (see below), whose sum is σ = 123545120. Its totient is φ = 107917920.

The previous prime is 115640563. The next prime is 115640597. The reversal of 115640593 is 395046511.

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

It is a cyclic number.

It is not a de Polignac number, because 115640593 - 213 = 115632401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115640597) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 44148 + ... + 46693.

It is an arithmetic number, because the mean of its divisors is an integer number (15443140).

Almost surely, 2115640593 is an apocalyptic number.

It is an amenable number.

115640593 is a deficient number, since it is larger than the sum of its proper divisors (7904527).

115640593 is an equidigital number, since it uses as much as digits as its factorization.

115640593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90927.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 115640593 is about 10753.6316191322. The cubic root of 115640593 is about 487.1956889317.

The spelling of 115640593 in words is "one hundred fifteen million, six hundred forty thousand, five hundred ninety-three".

Divisors: 1 19 67 1273 90841 1725979 6086347 115640593