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29680398399 = 357427172279
BaseRepresentation
bin11011101001000101…
…101111000000111111
32211121110220110101210
4123221011233000333
5441241140222044
621345053535503
72100336136521
oct335105570077
984543813353
1029680398399
11116508a1683
125903aa4593
132a500c3322
141617c11a11
15b8aa471b9
hex6e916f03f

29680398399 has 8 divisors (see below), whose sum is σ = 39574783360. Its totient is φ = 19786472856.

The previous prime is 29680398383. The next prime is 29680398403. The reversal of 29680398399 is 99389308692.

It is a Cunningham number, because it is equal to 1722802-1.

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

It is not a de Polignac number, because 29680398399 - 24 = 29680398383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29680398329) 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, 86142 + ... + 258420.

It is an arithmetic number, because the mean of its divisors is an integer number (4946847920).

Almost surely, 229680398399 is an apocalyptic number.

29680398399 is a deficient number, since it is larger than the sum of its proper divisors (9894384961).

29680398399 is a wasteful number, since it uses less digits than its factorization.

29680398399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229709.

The product of its (nonzero) digits is 45349632, while the sum is 66.

The spelling of 29680398399 in words is "twenty-nine billion, six hundred eighty million, three hundred ninety-eight thousand, three hundred ninety-nine".

Divisors: 1 3 57427 172279 172281 516837 9893466133 29680398399