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109982171 = 139918537
BaseRepresentation
bin1101000111000…
…11000111011011
321122221200011202
412203203013123
5211123412141
614525144415
72503555505
oct643430733
9248850152
10109982171
115709a262
12309bb10b
1319a2a210
141086cd75
1599c749b
hex68e31db

109982171 has 8 divisors (see below), whose sum is σ = 118575744. Its totient is φ = 101407680.

The previous prime is 109982137. The next prime is 109982179. The reversal of 109982171 is 171289901.

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 109982171 - 26 = 109982107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109982179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8615 + ... + 17151.

It is an arithmetic number, because the mean of its divisors is an integer number (14821968).

Almost surely, 2109982171 is an apocalyptic number.

109982171 is a deficient number, since it is larger than the sum of its proper divisors (8593573).

109982171 is an equidigital number, since it uses as much as digits as its factorization.

109982171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9541.

The product of its (nonzero) digits is 9072, while the sum is 38.

The square root of 109982171 is about 10487.2384830326. The cubic root of 109982171 is about 479.1160975728.

The spelling of 109982171 in words is "one hundred nine million, nine hundred eighty-two thousand, one hundred seventy-one".

Divisors: 1 13 991 8537 12883 110981 8460167 109982171