Base | Representation |
---|---|
bin | 10101011111000… |
… | …00011111111100 |
3 | 110120010102122200 |
4 | 22233200133330 |
5 | 332114213134 |
6 | 25514511500 |
7 | 4315616235 |
oct | 1257403774 |
9 | 416112580 |
10 | 180226044 |
11 | 92807549 |
12 | 50435590 |
13 | 2b452a3b |
14 | 19d1608c |
15 | 10c50499 |
hex | abe07fc |
180226044 has 72 divisors (see below), whose sum is σ = 485332848. Its totient is φ = 56194560.
The previous prime is 180226031. The next prime is 180226049. The reversal of 180226044 is 440622081.
It is a junction number, because it is equal to n+sod(n) for n = 180225999 and 180226017.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (180226049) 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, 109959 + ... + 111585.
It is an arithmetic number, because the mean of its divisors is an integer number (6740734).
Almost surely, 2180226044 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 180226044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242666424).
180226044 is an abundant number, since it is smaller than the sum of its proper divisors (305106804).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
180226044 is a wasteful number, since it uses less digits than its factorization.
180226044 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1835 (or 1830 counting only the distinct ones).
The product of its (nonzero) digits is 3072, while the sum is 27.
The square root of 180226044 is about 13424.8293843907. The cubic root of 180226044 is about 564.8578690702.
The spelling of 180226044 in words is "one hundred eighty million, two hundred twenty-six thousand, forty-four".
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