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80898881247 = 3327111056291
BaseRepresentation
bin100101101010111110…
…0101111011011011111
321201210222111222021000
41023111330233123133
52311140103144442
6101055303441343
75562515100432
oct1132574573337
9251728458230
1080898881247
1131344344948
1213818a56253
137823429202
143cb62c3819
152187378d4c
hex12d5f2f6df

80898881247 has 16 divisors (see below), whose sum is σ = 120292456960. Its totient is φ = 53733569400.

The previous prime is 80898881227. The next prime is 80898881251. The reversal of 80898881247 is 74218889808.

It is not a de Polignac number, because 80898881247 - 26 = 80898881183 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 (80898881227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5520829 + ... + 5535462.

It is an arithmetic number, because the mean of its divisors is an integer number (7518278560).

Almost surely, 280898881247 is an apocalyptic number.

80898881247 is a deficient number, since it is larger than the sum of its proper divisors (39393575713).

80898881247 is a wasteful number, since it uses less digits than its factorization.

80898881247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11056571 (or 11056565 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 63.

The spelling of 80898881247 in words is "eighty billion, eight hundred ninety-eight million, eight hundred eighty-one thousand, two hundred forty-seven".

Divisors: 1 3 9 27 271 813 2439 7317 11056291 33168873 99506619 298519857 2996254861 8988764583 26966293749 80898881247