Base | Representation |
---|---|
bin | 100101101010111110… |
… | …0101111011011011111 |
3 | 21201210222111222021000 |
4 | 1023111330233123133 |
5 | 2311140103144442 |
6 | 101055303441343 |
7 | 5562515100432 |
oct | 1132574573337 |
9 | 251728458230 |
10 | 80898881247 |
11 | 31344344948 |
12 | 13818a56253 |
13 | 7823429202 |
14 | 3cb62c3819 |
15 | 2187378d4c |
hex | 12d5f2f6df |
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".
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