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109409223 = 3711473633
BaseRepresentation
bin1101000010101…
…11001111000111
321121212120020110
412201113033013
5211002043343
614505004103
72465651220
oct641271707
9247776213
10109409223
1156838850
1230783633
13198894b1
1410760247
159912833
hex68573c7

109409223 has 16 divisors (see below), whose sum is σ = 181875456. Its totient is φ = 56835840.

The previous prime is 109409221. The next prime is 109409231. The reversal of 109409223 is 322904901.

It is not a de Polignac number, because 109409223 - 21 = 109409221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109409221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236586 + ... + 237047.

It is an arithmetic number, because the mean of its divisors is an integer number (11367216).

Almost surely, 2109409223 is an apocalyptic number.

109409223 is a deficient number, since it is larger than the sum of its proper divisors (72466233).

109409223 is a wasteful number, since it uses less digits than its factorization.

109409223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473654.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 109409223 is about 10459.8863760559. The cubic root of 109409223 is about 478.2826695346.

The spelling of 109409223 in words is "one hundred nine million, four hundred nine thousand, two hundred twenty-three".

Divisors: 1 3 7 11 21 33 77 231 473633 1420899 3315431 5209963 9946293 15629889 36469741 109409223