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83129688751 = 1792381195049
BaseRepresentation
bin100110101101011101…
…0100110001010101111
321221120110011201212011
41031122322212022233
52330222200020001
6102104513422051
76002013460414
oct1153272461257
9257513151764
1083129688751
11322895a660a
121413bb6a927
137aba656255
1440486a010b
15226812dd51
hex135aea62af

83129688751 has 8 divisors (see below), whose sum is σ = 83629638000. Its totient is φ = 82630134720.

The previous prime is 83129688743. The next prime is 83129688767. The reversal of 83129688751 is 15788692138.

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

It is a cyclic number.

It is not a de Polignac number, because 83129688751 - 23 = 83129688743 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 (83129688721) 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, 328675 + ... + 523723.

It is an arithmetic number, because the mean of its divisors is an integer number (10453704750).

Almost surely, 283129688751 is an apocalyptic number.

83129688751 is a deficient number, since it is larger than the sum of its proper divisors (499949249).

83129688751 is a wasteful number, since it uses less digits than its factorization.

83129688751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197609.

The product of its digits is 5806080, while the sum is 58.

The spelling of 83129688751 in words is "eighty-three billion, one hundred twenty-nine million, six hundred eighty-eight thousand, seven hundred fifty-one".

Divisors: 1 179 2381 195049 426199 34913771 464411669 83129688751