Base | Representation |
---|---|
bin | 10101100000100… |
… | …01001000000000 |
3 | 110120111112212102 |
4 | 22300101020000 |
5 | 332142101331 |
6 | 25523045532 |
7 | 4320406016 |
oct | 1260211000 |
9 | 416445772 |
10 | 180425216 |
11 | 92933154 |
12 | 505108a8 |
13 | 2b4c25aa |
14 | 19d688b6 |
15 | 10c8e4cb |
hex | ac11200 |
180425216 has 80 divisors (see below), whose sum is σ = 402161760. Its totient is φ = 80363520.
The previous prime is 180425191. The next prime is 180425257. The reversal of 180425216 is 612524081.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164831 + ... + 165921.
It is an arithmetic number, because the mean of its divisors is an integer number (5027022).
Almost surely, 2180425216 is an apocalyptic number.
180425216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 180425216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201080880).
180425216 is an abundant number, since it is smaller than the sum of its proper divisors (221736544).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
180425216 is a wasteful number, since it uses less digits than its factorization.
180425216 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1145 (or 1129 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 29.
The square root of 180425216 is about 13432.2453819159. The cubic root of 180425216 is about 565.0658716631.
Adding to 180425216 its reverse (612524081), we get a palindrome (792949297).
The spelling of 180425216 in words is "one hundred eighty million, four hundred twenty-five thousand, two hundred sixteen".
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