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29519109 = 3218118121
BaseRepresentation
bin111000010011…
…0110100000101
32001112201121100
41300212310011
530024102414
62532410313
7505623354
oct160466405
961481540
1029519109
1115732164
129a76999
136167139
143cc599b
1528d1609
hex1c26d05

29519109 has 12 divisors (see below), whose sum is σ = 42876652. Its totient is φ = 19569600.

The previous prime is 29519107. The next prime is 29519117. The reversal of 29519109 is 90191592.

It can be written as a sum of positive squares in 2 ways, for example, as 3814209 + 25704900 = 1953^2 + 5070^2 .

It is not a de Polignac number, because 29519109 - 21 = 29519107 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29519101) 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 11 ways as a sum of consecutive naturals, for example, 7432 + ... + 10689.

Almost surely, 229519109 is an apocalyptic number.

It is an amenable number.

29519109 is a deficient number, since it is larger than the sum of its proper divisors (13357543).

29519109 is a wasteful number, since it uses less digits than its factorization.

29519109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18308 (or 18305 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 36.

The square root of 29519109 is about 5433.1490868556. The cubic root of 29519109 is about 309.0540327166.

The spelling of 29519109 in words is "twenty-nine million, five hundred nineteen thousand, one hundred nine".

Divisors: 1 3 9 181 543 1629 18121 54363 163089 3279901 9839703 29519109