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1109345409 = 3341086867
BaseRepresentation
bin100001000011111…
…0100010010000001
32212022102120211000
41002013310102001
54232443023114
6302025042213
736330165114
oct10207642201
92768376730
101109345409
1151a218697
1226b626369
13148aa3603
14a749257b
15675cee09
hex421f4481

1109345409 has 8 divisors (see below), whose sum is σ = 1643474720. Its totient is φ = 739563588.

The previous prime is 1109345401. The next prime is 1109345411. The reversal of 1109345409 is 9045439011.

It is a happy number.

1109345409 is a `hidden beast` number, since 1 + 109 + 3 + 4 + 540 + 9 = 666.

It is not a de Polignac number, because 1109345409 - 23 = 1109345401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1109345401) 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, 20543407 + ... + 20543460.

It is an arithmetic number, because the mean of its divisors is an integer number (205434340).

Almost surely, 21109345409 is an apocalyptic number.

It is an amenable number.

1109345409 is a deficient number, since it is larger than the sum of its proper divisors (534129311).

1109345409 is an equidigital number, since it uses as much as digits as its factorization.

1109345409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41086876 (or 41086870 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 1109345409 is about 33306.8372710469. The cubic root of 1109345409 is about 1035.1952330720.

The spelling of 1109345409 in words is "one billion, one hundred nine million, three hundred forty-five thousand, four hundred nine".

Divisors: 1 3 9 27 41086867 123260601 369781803 1109345409