| Base | Representation |
|---|---|
| bin | 111101111101… |
| … | …001001000100 |
| 3 | 1010120010202200 |
| 4 | 331331021010 |
| 5 | 13124204340 |
| 6 | 1340034500 |
| 7 | 255022332 |
| oct | 75751104 |
| 9 | 33503680 |
| 10 | 16241220 |
| 11 | 91932a6 |
| 12 | 5532a30 |
| 13 | 34985b8 |
| 14 | 222ab52 |
| 15 | 165c330 |
| hex | f7d244 |
16241220 has 72 divisors (see below), whose sum is σ = 51420096. Its totient is φ = 4141632.
The previous prime is 16241167. The next prime is 16241227. The reversal of 16241220 is 2214261.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 16241193 and 16241202.
It is not an unprimeable number, because it can be changed into a prime (16241227) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2179 + ... + 6101.
It is an arithmetic number, because the mean of its divisors is an integer number (714168).
Almost surely, 216241220 is an apocalyptic number.
16241220 is a gapful number since it is divisible by the number (10) 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 16241220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25710048).
16241220 is an abundant number, since it is smaller than the sum of its proper divisors (35178876).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
16241220 is a wasteful number, since it uses less digits than its factorization.
16241220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3961 (or 3956 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The square root of 16241220 is about 4030.0397020377. The cubic root of 16241220 is about 253.2442245850.
Adding to 16241220 its reverse (2214261), we get a palindrome (18455481).
It can be divided in two parts, 16241 and 220, that added together give a palindrome (16461).
The spelling of 16241220 in words is "sixteen million, two hundred forty-one thousand, two hundred twenty".
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