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109195727 = 129784191
BaseRepresentation
bin1101000001000…
…11000111001111
321121110201101012
412200203013033
5210423230402
614500235435
72464101614
oct640430717
9247421335
10109195727
1156702403
123069bb7b
1319813274
141070650b
1598be452
hex68231cf

109195727 has 4 divisors (see below), whose sum is σ = 109281216. Its totient is φ = 109110240.

The previous prime is 109195661. The next prime is 109195753. The reversal of 109195727 is 727591901.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 109195727 - 210 = 109194703 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 (109195027) 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, 40799 + ... + 43392.

It is an arithmetic number, because the mean of its divisors is an integer number (27320304).

Almost surely, 2109195727 is an apocalyptic number.

109195727 is a deficient number, since it is larger than the sum of its proper divisors (85489).

109195727 is an equidigital number, since it uses as much as digits as its factorization.

109195727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85488.

The product of its (nonzero) digits is 39690, while the sum is 41.

The square root of 109195727 is about 10449.6759279893. The cubic root of 109195727 is about 477.9713675420.

The spelling of 109195727 in words is "one hundred nine million, one hundred ninety-five thousand, seven hundred twenty-seven".

Divisors: 1 1297 84191 109195727