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115268749 is a prime number
BaseRepresentation
bin1101101111011…
…01110010001101
322000220020222221
412313231302031
5214002044444
615234335341
72566524331
oct667556215
9260806887
10115268749
115a080132
123272a551
131ab5b57b
14114477c1
15a1bda84
hex6dedc8d

115268749 has 2 divisors, whose sum is σ = 115268750. Its totient is φ = 115268748.

The previous prime is 115268731. The next prime is 115268761. The reversal of 115268749 is 947862511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108534724 + 6734025 = 10418^2 + 2595^2 .

It is a cyclic number.

It is not a de Polignac number, because 115268749 - 25 = 115268717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115268149) 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 as a sum of consecutive naturals, namely, 57634374 + 57634375.

It is an arithmetic number, because the mean of its divisors is an integer number (57634375).

Almost surely, 2115268749 is an apocalyptic number.

It is an amenable number.

115268749 is a deficient number, since it is larger than the sum of its proper divisors (1).

115268749 is an equidigital number, since it uses as much as digits as its factorization.

115268749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 43.

The square root of 115268749 is about 10736.3284692673. The cubic root of 115268749 is about 486.6729332923.

The spelling of 115268749 in words is "one hundred fifteen million, two hundred sixty-eight thousand, seven hundred forty-nine".