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115247297 = 11386587
BaseRepresentation
bin1101101111010…
…00100011000001
322000212011120102
412313220203001
5214000403142
615234052145
72566404644
oct667504301
9260764512
10115247297
115a066000
123271a055
131ab51889
141143da5b
15a1b7532
hex6de88c1

115247297 has 8 divisors (see below), whose sum is σ = 126764832. Its totient is φ = 104769060.

The previous prime is 115247291. The next prime is 115247311. The reversal of 115247297 is 792742511.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-115247297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115247297.

It is not an unprimeable number, because it can be changed into a prime (115247291) 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 7 ways as a sum of consecutive naturals, for example, 41963 + ... + 44624.

It is an arithmetic number, because the mean of its divisors is an integer number (15845604).

Almost surely, 2115247297 is an apocalyptic number.

It is an amenable number.

115247297 is a deficient number, since it is larger than the sum of its proper divisors (11517535).

115247297 is an frugal number, since it uses more digits than its factorization.

115247297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86620 (or 86598 counting only the distinct ones).

The product of its digits is 35280, while the sum is 38.

The square root of 115247297 is about 10735.3293847930. The cubic root of 115247297 is about 486.6427407912.

The spelling of 115247297 in words is "one hundred fifteen million, two hundred forty-seven thousand, two hundred ninety-seven".

Divisors: 1 11 121 1331 86587 952457 10477027 115247297