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109055471 = 779197207
BaseRepresentation
bin1101000000000…
…00110111101111
321121012120222112
412200000313233
5210404233341
614453234235
72462645660
oct640006757
9247176875
10109055471
1156616a98
123063297b
1319794485
14106ab367
159892aeb
hex6800def

109055471 has 8 divisors (see below), whose sum is σ = 126213120. Its totient is φ = 92292408.

The previous prime is 109055447. The next prime is 109055491. The reversal of 109055471 is 174550901.

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 109055471 - 26 = 109055407 is a prime.

It is a super-3 number, since 3×1090554713 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109055411) 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 7 ways as a sum of consecutive naturals, for example, 98051 + ... + 99156.

It is an arithmetic number, because the mean of its divisors is an integer number (15776640).

Almost surely, 2109055471 is an apocalyptic number.

109055471 is a deficient number, since it is larger than the sum of its proper divisors (17157649).

109055471 is an equidigital number, since it uses as much as digits as its factorization.

109055471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197293.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 109055471 is about 10442.9627501011. The cubic root of 109055471 is about 477.7666370797.

The spelling of 109055471 in words is "one hundred nine million, fifty-five thousand, four hundred seventy-one".

Divisors: 1 7 79 553 197207 1380449 15579353 109055471