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109447029 = 3212160781
BaseRepresentation
bin1101000011000…
…00011101110101
321121221111002200
412201200131311
5211004301104
614505455113
72466166356
oct641403565
9247844080
10109447029
115686419a
12307a1499
13198a0773
141076dd2d
15991db39
hex6860775

109447029 has 6 divisors (see below), whose sum is σ = 158090166. Its totient is φ = 72964680.

The previous prime is 109447027. The next prime is 109447033. The reversal of 109447029 is 920744901.

It can be written as a sum of positive squares in only one way, i.e., 77264100 + 32182929 = 8790^2 + 5673^2 .

It is not a de Polignac number, because 109447029 - 21 = 109447027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109446984 and 109447002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109447021) 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 5 ways as a sum of consecutive naturals, for example, 6080382 + ... + 6080399.

It is an arithmetic number, because the mean of its divisors is an integer number (26348361).

Almost surely, 2109447029 is an apocalyptic number.

It is an amenable number.

109447029 is a deficient number, since it is larger than the sum of its proper divisors (48643137).

109447029 is a wasteful number, since it uses less digits than its factorization.

109447029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12160787 (or 12160784 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 109447029 is about 10461.6934097688. The cubic root of 109447029 is about 478.3377528624.

The spelling of 109447029 in words is "one hundred nine million, four hundred forty-seven thousand, twenty-nine".

Divisors: 1 3 9 12160781 36482343 109447029