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115130689 = 711621559
BaseRepresentation
bin1101101110011…
…00000101000001
322000122020121121
412313030011001
5213433140224
615231352241
72565410662
oct667140501
9260566547
10115130689
1159a96433
1232682681
131ab1078b
141140d369
15a192be4
hex6dcc141

115130689 has 4 divisors (see below), whose sum is σ = 116752320. Its totient is φ = 113509060.

The previous prime is 115130677. The next prime is 115130699. The reversal of 115130689 is 986031511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 115130689 - 215 = 115097921 is a prime.

It is a super-2 number, since 2×1151306892 = 26510151099229442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115130629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810709 + ... + 810850.

It is an arithmetic number, because the mean of its divisors is an integer number (29188080).

Almost surely, 2115130689 is an apocalyptic number.

It is an amenable number.

115130689 is a deficient number, since it is larger than the sum of its proper divisors (1621631).

115130689 is an equidigital number, since it uses as much as digits as its factorization.

115130689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621630.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 115130689 is about 10729.8969706144. The cubic root of 115130689 is about 486.4785559245.

The spelling of 115130689 in words is "one hundred fifteen million, one hundred thirty thousand, six hundred eighty-nine".

Divisors: 1 71 1621559 115130689