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220956120 = 233357112657
BaseRepresentation
bin11010010101110…
…00010111011000
3120101202201211000
431022320113120
5423031043440
633531505000
75322044640
oct1512702730
9511681730
10220956120
111037a6670
1261bb8160
1336a13988
14214b9520
15145e8730
hexd2b85d8

220956120 has 256 divisors, whose sum is σ = 918604800. Its totient is φ = 45895680.

The previous prime is 220956103. The next prime is 220956143. The reversal of 220956120 is 21659022.

220956120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 81832 + ... + 84488.

It is an arithmetic number, because the mean of its divisors is an integer number (3588300).

Almost surely, 2220956120 is an apocalyptic number.

220956120 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 220956120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459302400).

220956120 is an abundant number, since it is smaller than the sum of its proper divisors (697648680).

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

220956120 is a wasteful number, since it uses less digits than its factorization.

220956120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695 (or 2685 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 220956120 is about 14864.5928299432. The cubic root of 220956120 is about 604.5543424722.

The spelling of 220956120 in words is "two hundred twenty million, nine hundred fifty-six thousand, one hundred twenty".