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115405130 = 2511540513
BaseRepresentation
bin1101110000011…
…11000101001010
322001011012002002
412320033011022
5214020431010
615241311002
72600633051
oct670170512
9261135062
10115405130
115a163645
1232795462
131aba8679
1411481398
15a1e91a5
hex6e0f14a

115405130 has 8 divisors (see below), whose sum is σ = 207729252. Its totient is φ = 46162048.

The previous prime is 115405127. The next prime is 115405139. The reversal of 115405130 is 31504511.

It can be written as a sum of positive squares in 2 ways, for example, as 96491329 + 18913801 = 9823^2 + 4349^2 .

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

It is not an unprimeable number, because it can be changed into a prime (115405139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5770247 + ... + 5770266.

Almost surely, 2115405130 is an apocalyptic number.

115405130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115405130 is a deficient number, since it is larger than the sum of its proper divisors (92324122).

115405130 is a wasteful number, since it uses less digits than its factorization.

115405130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11540520.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 115405130 is about 10742.6779715302. The cubic root of 115405130 is about 486.8647944357.

Adding to 115405130 its reverse (31504511), we get a palindrome (146909641).

The spelling of 115405130 in words is "one hundred fifteen million, four hundred five thousand, one hundred thirty".

Divisors: 1 2 5 10 11540513 23081026 57702565 115405130