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80898810855 = 355393254057
BaseRepresentation
bin100101101010111110…
…0011110001111100111
321201210222101101200220
41023111330132033213
52311140043421410
6101055302135423
75562514355262
oct1132574361747
9251728341626
1080898810855
11313442a6a75
1213818a21573
137823403165
143cb62a5cd9
152187363070
hex12d5f1e3e7

80898810855 has 8 divisors (see below), whose sum is σ = 129438097392. Its totient is φ = 43146032448.

The previous prime is 80898810851. The next prime is 80898810887. The reversal of 80898810855 is 55801889808.

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

It is not a de Polignac number, because 80898810855 - 22 = 80898810851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80898810851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2696627014 + ... + 2696627043.

It is an arithmetic number, because the mean of its divisors is an integer number (16179762174).

Almost surely, 280898810855 is an apocalyptic number.

80898810855 is a deficient number, since it is larger than the sum of its proper divisors (48539286537).

80898810855 is a wasteful number, since it uses less digits than its factorization.

80898810855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5393254065.

The product of its (nonzero) digits is 7372800, while the sum is 60.

The spelling of 80898810855 in words is "eighty billion, eight hundred ninety-eight million, eight hundred ten thousand, eight hundred fifty-five".

Divisors: 1 3 5 15 5393254057 16179762171 26966270285 80898810855