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120031010220 = 2235112172813461
BaseRepresentation
bin110111111001001100…
…1111101110110101100
3102110211011112002112010
41233302121331312230
53431310414311340
6131050321041220
711446323516132
oct1576231756654
9373734462463
10120031010220
11469a5415600
121b31a186210
13b41b754104
145b494d9752
1531c7a7db80
hex1bf267ddac

120031010220 has 288 divisors, whose sum is σ = 392653614528. Its totient is φ = 27281408000.

The previous prime is 120031010213. The next prime is 120031010233. The reversal of 120031010220 is 22010130021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 120031010196 and 120031010205.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 34679290 + ... + 34682750.

It is an arithmetic number, because the mean of its divisors is an integer number (1363380606).

Almost surely, 2120031010220 is an apocalyptic number.

120031010220 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 120031010220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196326807264).

120031010220 is an abundant number, since it is smaller than the sum of its proper divisors (272622604308).

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

120031010220 is a wasteful number, since it uses less digits than its factorization.

120031010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3793 (or 3780 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 120031010220 its reverse (22010130021), we get a palindrome (142041140241).

The spelling of 120031010220 in words is "one hundred twenty billion, thirty-one million, ten thousand, two hundred twenty".