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109008605 = 5191147459
BaseRepresentation
bin1100111111101…
…01011011011101
321121010012200202
412133311123131
5210401233410
614452233245
72462362226
oct637653335
9247105622
10109008605
1156594862
123060b825
1319779044
141069824d
159883ca5
hex67f56dd

109008605 has 8 divisors (see below), whose sum is σ = 137695200. Its totient is φ = 82616976.

The previous prime is 109008589. The next prime is 109008629. The reversal of 109008605 is 506800901.

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

It is a cyclic number.

It is not a de Polignac number, because 109008605 - 24 = 109008589 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 573635 + ... + 573824.

It is an arithmetic number, because the mean of its divisors is an integer number (17211900).

Almost surely, 2109008605 is an apocalyptic number.

It is an amenable number.

109008605 is a deficient number, since it is larger than the sum of its proper divisors (28686595).

109008605 is a wasteful number, since it uses less digits than its factorization.

109008605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147483.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 109008605 is about 10440.7186055367. The cubic root of 109008605 is about 477.6981880625.

The spelling of 109008605 in words is "one hundred nine million, eight thousand, six hundred five".

Divisors: 1 5 19 95 1147459 5737295 21801721 109008605