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107839449 = 3217704833
BaseRepresentation
bin1100110110101…
…11111111011001
321111220210220200
412123113333121
5210101330244
614411212413
72446422504
oct633277731
9244823820
10107839449
1155966413
1230147109
1319459b33
141047213b
159702669
hex66d7fd9

107839449 has 12 divisors (see below), whose sum is σ = 164931156. Its totient is φ = 67663872.

The previous prime is 107839447. The next prime is 107839451. The reversal of 107839449 is 944938701.

It is an interprime number because it is at equal distance from previous prime (107839447) and next prime (107839451).

It can be written as a sum of positive squares in 2 ways, for example, as 48441600 + 59397849 = 6960^2 + 7707^2 .

It is not a de Polignac number, because 107839449 - 21 = 107839447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (107839447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 352264 + ... + 352569.

It is an arithmetic number, because the mean of its divisors is an integer number (13744263).

Almost surely, 2107839449 is an apocalyptic number.

It is an amenable number.

107839449 is a deficient number, since it is larger than the sum of its proper divisors (57091707).

107839449 is a wasteful number, since it uses less digits than its factorization.

107839449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704856 (or 704853 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 107839449 is about 10384.5774589051. The cubic root of 107839449 is about 475.9842181642.

The spelling of 107839449 in words is "one hundred seven million, eight hundred thirty-nine thousand, four hundred forty-nine".

Divisors: 1 3 9 17 51 153 704833 2114499 6343497 11982161 35946483 107839449