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115031465 = 553434081
BaseRepresentation
bin1101101101100…
…11110110101001
322000110012111122
412312303312221
5213422001330
615225305025
72564515463
oct666636651
9260405448
10115031465
1159a2892a
1232635175
131aaa7573
14113c5133
15a1735e5
hex6db3da9

115031465 has 8 divisors (see below), whose sum is σ = 140642568. Its totient is φ = 90288640.

The previous prime is 115031459. The next prime is 115031467. The reversal of 115031465 is 564130511.

It can be written as a sum of positive squares in 4 ways, for example, as 13344409 + 101687056 = 3653^2 + 10084^2 .

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

It is not a de Polignac number, because 115031465 - 220 = 113982889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115031467) 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 7 ways as a sum of consecutive naturals, for example, 216776 + ... + 217305.

It is an arithmetic number, because the mean of its divisors is an integer number (17580321).

Almost surely, 2115031465 is an apocalyptic number.

It is an amenable number.

115031465 is a deficient number, since it is larger than the sum of its proper divisors (25611103).

115031465 is an equidigital number, since it uses as much as digits as its factorization.

115031465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434139.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 115031465 is about 10725.2722576166. The cubic root of 115031465 is about 486.3387605251.

Adding to 115031465 its reverse (564130511), we get a palindrome (679161976).

The spelling of 115031465 in words is "one hundred fifteen million, thirty-one thousand, four hundred sixty-five".

Divisors: 1 5 53 265 434081 2170405 23006293 115031465