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109708745 = 536136073
BaseRepresentation
bin1101000101000…
…00010111001001
321122102210002212
412202200113021
5211041134440
614515234505
72501336366
oct642402711
9248383085
10109708745
1156a22893
12308a8a35
1319962923
14107db46d
159971465
hex68a05c9

109708745 has 8 divisors (see below), whose sum is σ = 131708616. Its totient is φ = 87728256.

The previous prime is 109708741. The next prime is 109708747. The reversal of 109708745 is 547807901.

It can be written as a sum of positive squares in 4 ways, for example, as 3474496 + 106234249 = 1864^2 + 10307^2 .

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 109708745 - 22 = 109708741 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109708741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15029 + ... + 21101.

It is an arithmetic number, because the mean of its divisors is an integer number (16463577).

Almost surely, 2109708745 is an apocalyptic number.

It is an amenable number.

109708745 is a deficient number, since it is larger than the sum of its proper divisors (21999871).

109708745 is an equidigital number, since it uses as much as digits as its factorization.

109708745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9691.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 109708745 is about 10474.1942410860. The cubic root of 109708745 is about 478.7187255599.

The spelling of 109708745 in words is "one hundred nine million, seven hundred eight thousand, seven hundred forty-five".

Divisors: 1 5 3613 6073 18065 30365 21941749 109708745