Base | Representation |
---|---|
bin | 1010100001011111110… |
… | …0111001010110001000 |
3 | 122021122121011020122112 |
4 | 2220113330321112020 |
5 | 10430224324402203 |
6 | 215015355041452 |
7 | 16030104414332 |
oct | 2502774712610 |
9 | 567577136575 |
10 | 180790465928 |
11 | 6a744560a06 |
12 | 2b056440288 |
13 | 14082639977 |
14 | 8a70ba2452 |
15 | 4a81cea6d8 |
hex | 2a17f39588 |
180790465928 has 12 divisors (see below), whose sum is σ = 338984378565. Its totient is φ = 90394631648.
The previous prime is 180790465909. The next prime is 180790465949. The reversal of 180790465928 is 829564097081.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
180790465928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 155221816324 + 25568649604 = 393982^2 + 159902^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=300658.
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1127468 + ... + 1277796.
Almost surely, 2180790465928 is an apocalyptic number.
It is an amenable number.
180790465928 is a deficient number, since it is larger than the sum of its proper divisors (158193912637).
180790465928 is an frugal number, since it uses more digits than its factorization.
180790465928 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 300664 (or 150331 counting only the distinct ones).
The product of its (nonzero) digits is 8709120, while the sum is 59.
The spelling of 180790465928 in words is "one hundred eighty billion, seven hundred ninety million, four hundred sixty-five thousand, nine hundred twenty-eight".
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