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220432120 = 235792883
BaseRepresentation
bin11010010001110…
…00011011111000
3120100210010000121
431020320123320
5422412311440
633512343024
75314433146
oct1510703370
9510703017
10220432120
11103478a07
12619a4a74
133688c30c
14213c0596
151454334a
hexd2386f8

220432120 has 48 divisors (see below), whose sum is σ = 502898760. Its totient is φ = 86958144.

The previous prime is 220432109. The next prime is 220432123. The reversal of 220432120 is 21234022.

220432120 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 = 220432094 and 220432103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220432123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 249199 + ... + 250081.

Almost surely, 2220432120 is an apocalyptic number.

220432120 is a gapful number since it is divisible by the number (20) 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 220432120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251449380).

220432120 is an abundant number, since it is smaller than the sum of its proper divisors (282466640).

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

220432120 is an equidigital number, since it uses as much as digits as its factorization.

220432120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 220432120 is about 14846.9565904936. The cubic root of 220432120 is about 604.0760616461.

Adding to 220432120 its reverse (21234022), we get a palindrome (241666142).

The spelling of 220432120 in words is "two hundred twenty million, four hundred thirty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 79 158 316 395 632 790 883 1580 1766 3160 3532 4415 6241 7064 8830 12482 17660 24964 31205 35320 49928 62410 69757 124820 139514 249640 279028 348785 558056 697570 1395140 2790280 5510803 11021606 22043212 27554015 44086424 55108030 110216060 220432120