Base | Representation |
---|---|
bin | 100101100010001110… |
… | …1001101110011001000 |
3 | 21201001112021210122200 |
4 | 1023010131031303020 |
5 | 2310034440414420 |
6 | 101010221320200 |
7 | 5552322426615 |
oct | 1130435156310 |
9 | 251045253580 |
10 | 80605404360 |
11 | 31203716368 |
12 | 13756706060 |
13 | 77a76a3550 |
14 | 3c8932b50c |
15 | 216b707b90 |
hex | 12c474dcc8 |
80605404360 has 96 divisors (see below), whose sum is σ = 282118931640. Its totient is φ = 19841329152.
The previous prime is 80605404359. The next prime is 80605404367. The reversal of 80605404360 is 6340450608.
80605404360 is a `hidden beast` number, since 8 + 0 + 605 + 4 + 0 + 43 + 6 + 0 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 64052523396 + 16552880964 = 253086^2 + 128658^2 .
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (80605404367) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8607009 + ... + 8616368.
Almost surely, 280605404360 is an apocalyptic number.
It is an amenable number.
80605404360 is an abundant number, since it is smaller than the sum of its proper divisors (201513527280).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80605404360 is a wasteful number, since it uses less digits than its factorization.
80605404360 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17223407 (or 17223400 counting only the distinct ones).
The product of its (nonzero) digits is 69120, while the sum is 36.
Adding to 80605404360 its reverse (6340450608), we get a palindrome (86945854968).
The spelling of 80605404360 in words is "eighty billion, six hundred five million, four hundred four thousand, three hundred sixty".
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