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109286117 = 971126661
BaseRepresentation
bin1101000001110…
…01001011100101
321121122022100222
412200321023211
5210434123432
614502214125
72464626263
oct640711345
9247568328
10109286117
1156764306
1230724345
1319845455
141072b433
1598db112
hex68392e5

109286117 has 4 divisors (see below), whose sum is σ = 110412876. Its totient is φ = 108159360.

The previous prime is 109286083. The next prime is 109286131. The reversal of 109286117 is 711682901.

It is a Cunningham number, because it is equal to 104542+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49084036 + 60202081 = 7006^2 + 7759^2 .

It is a cyclic number.

It is not a de Polignac number, because 109286117 - 226 = 42177253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109286137) 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, 563234 + ... + 563427.

It is an arithmetic number, because the mean of its divisors is an integer number (27603219).

Almost surely, 2109286117 is an apocalyptic number.

It is an amenable number.

109286117 is a deficient number, since it is larger than the sum of its proper divisors (1126759).

109286117 is an equidigital number, since it uses as much as digits as its factorization.

109286117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126758.

The product of its (nonzero) digits is 6048, while the sum is 35.

The square root of 109286117 is about 10454.0000478286. Note that the first 4 decimals coincide. The cubic root of 109286117 is about 478.1032161576.

The spelling of 109286117 in words is "one hundred nine million, two hundred eighty-six thousand, one hundred seventeen".

Divisors: 1 97 1126661 109286117