Base | Representation |
---|---|
bin | 100101011010111110… |
… | …0001010111100011001 |
3 | 21200102120000111211010 |
4 | 1022311330022330121 |
5 | 2304040114022024 |
6 | 100530121324133 |
7 | 5543304355422 |
oct | 1126574127431 |
9 | 250376014733 |
10 | 80361860889 |
11 | 310991a2572 |
12 | 136a9036649 |
13 | 77690b189b |
14 | 3c64c52649 |
15 | 215514bb29 |
hex | 12b5f0af19 |
80361860889 has 16 divisors (see below), whose sum is σ = 108270849024. Its totient is φ = 53014320000.
The previous prime is 80361860881. The next prime is 80361860927. The reversal of 80361860889 is 98806816308.
It is not a de Polignac number, because 80361860889 - 23 = 80361860881 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (80361860881) 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, 472072 + ... + 619334.
It is an arithmetic number, because the mean of its divisors is an integer number (6766928064).
Almost surely, 280361860889 is an apocalyptic number.
It is an amenable number.
80361860889 is a deficient number, since it is larger than the sum of its proper divisors (27908988135).
80361860889 is a wasteful number, since it uses less digits than its factorization.
80361860889 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 149168.
The product of its (nonzero) digits is 3981312, while the sum is 57.
The spelling of 80361860889 in words is "eighty billion, three hundred sixty-one million, eight hundred sixty thousand, eight hundred eighty-nine".
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