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16020320 = 255223449
BaseRepresentation
bin111101000111…
…001101100000
31010010220202012
4331013031200
513100122240
61331212052
7253112321
oct75071540
933126665
1016020320
119052338
125447028
13341bba4
1421b0448
151616b65
hexf47360

16020320 has 48 divisors (see below), whose sum is σ = 38102400. Its totient is φ = 6365184.

The previous prime is 16020293. The next prime is 16020337. The reversal of 16020320 is 2302061.

16020320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 16020295 and 16020304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35456 + ... + 35904.

It is an arithmetic number, because the mean of its divisors is an integer number (793800).

Almost surely, 216020320 is an apocalyptic number.

16020320 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 16020320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19051200).

16020320 is an abundant number, since it is smaller than the sum of its proper divisors (22082080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16020320 is a wasteful number, since it uses less digits than its factorization.

16020320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687 (or 679 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 16020320 is about 4002.5391940617. The cubic root of 16020320 is about 252.0908381680.

Adding to 16020320 its reverse (2302061), we get a palindrome (18322381).

The spelling of 16020320 in words is "sixteen million, twenty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 223 446 449 892 898 1115 1784 1796 2230 2245 3568 3592 4460 4490 7136 7184 8920 8980 14368 17840 17960 35680 35920 71840 100127 200254 400508 500635 801016 1001270 1602032 2002540 3204064 4005080 8010160 16020320