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29801307309 = 317584339359
BaseRepresentation
bin11011110000010010…
…111101110010101101
32211220220102021020120
4123300102331302231
5442013113313214
621405053235153
72103334634604
oct336022756255
984826367216
1029801307309
11117030742a4
125938492ab9
132a6c177b67
141629cc6a3b
15b9647bea9
hex6f04bdcad

29801307309 has 8 divisors (see below), whose sum is σ = 42072433920. Its totient is φ = 18698859456.

The previous prime is 29801307293. The next prime is 29801307311. The reversal of 29801307309 is 90370310892.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29801307309 - 24 = 29801307293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29801307379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292169629 + ... + 292169730.

It is an arithmetic number, because the mean of its divisors is an integer number (5259054240).

Almost surely, 229801307309 is an apocalyptic number.

It is an amenable number.

29801307309 is a deficient number, since it is larger than the sum of its proper divisors (12271126611).

29801307309 is a wasteful number, since it uses less digits than its factorization.

29801307309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584339379.

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 29801307309 in words is "twenty-nine billion, eight hundred one million, three hundred seven thousand, three hundred nine".

Divisors: 1 3 17 51 584339359 1753018077 9933769103 29801307309