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79845254897 = 227617570083
BaseRepresentation
bin100101001011100100…
…1011110011011110001
321122002112221012121212
41022113021132123301
52302010341124042
6100402544525505
75524432316462
oct1122711363361
9248075835555
1079845254897
1130953623871
1213584020895
1376b6064175
143c163b6d69
152124b03482
hex129725e6f1

79845254897 has 8 divisors (see below), whose sum is σ = 80327115936. Its totient is φ = 79364535712.

The previous prime is 79845254887. The next prime is 79845254911.

79845254897 is nontrivially palindromic in base 10.

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 79845254897 - 26 = 79845254833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79845254887) 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, 144983 + ... + 425100.

It is an arithmetic number, because the mean of its divisors is an integer number (10040889492).

Almost surely, 279845254897 is an apocalyptic number.

It is an amenable number.

79845254897 is a deficient number, since it is larger than the sum of its proper divisors (481861039).

79845254897 is a wasteful number, since it uses less digits than its factorization.

79845254897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570927.

The product of its digits is 203212800, while the sum is 68.

The spelling of 79845254897 in words is "seventy-nine billion, eight hundred forty-five million, two hundred fifty-four thousand, eight hundred ninety-seven".

Divisors: 1 227 617 140059 570083 129408841 351741211 79845254897