Base | Representation |
---|---|
bin | 100101101010001100… |
… | …0100001000100001111 |
3 | 21201202011002011011100 |
4 | 1023110120201010033 |
5 | 2311111341424030 |
6 | 101052524354143 |
7 | 5562045553203 |
oct | 1132430410417 |
9 | 251664064140 |
10 | 80872608015 |
11 | 3133052a431 |
12 | 138100a5953 |
13 | 781ab5a614 |
14 | 3cb2a04b03 |
15 | 2184dd9360 |
hex | 12d462110f |
80872608015 has 12 divisors (see below), whose sum is σ = 140179187304. Its totient is φ = 43132057584.
The previous prime is 80872608013. The next prime is 80872608053. The reversal of 80872608015 is 51080627808.
It is not a de Polignac number, because 80872608015 - 21 = 80872608013 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1797169067 = 80872608015 / (8 + 0 + 8 + 7 + 2 + 6 + 0 + 8 + 0 + 1 + 5).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80872608013) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 898584489 + ... + 898584578.
It is an arithmetic number, because the mean of its divisors is an integer number (11681598942).
Almost surely, 280872608015 is an apocalyptic number.
80872608015 is a deficient number, since it is larger than the sum of its proper divisors (59306579289).
80872608015 is a wasteful number, since it uses less digits than its factorization.
80872608015 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1797169078 (or 1797169075 counting only the distinct ones).
The product of its (nonzero) digits is 215040, while the sum is 45.
The spelling of 80872608015 in words is "eighty billion, eight hundred seventy-two million, six hundred eight thousand, fifteen".
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