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300120220 = 22543461757
BaseRepresentation
bin10001111000110…
…111100010011100
3202220201200112201
4101320313202130
51103312321340
645440341244
710302660031
oct2170674234
9686650481
10300120220
11144456844
1284614824
134a24073a
142bc05388
151b53479a
hex11e3789c

300120220 has 48 divisors (see below), whose sum is σ = 647162208. Its totient is φ = 116847360.

The previous prime is 300120173. The next prime is 300120251. The reversal of 300120220 is 22021003.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 300120197 and 300120206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396082 + ... + 396838.

It is an arithmetic number, because the mean of its divisors is an integer number (13482546).

Almost surely, 2300120220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 300120220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323581104).

300120220 is an abundant number, since it is smaller than the sum of its proper divisors (347041988).

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

300120220 is a wasteful number, since it uses less digits than its factorization.

300120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270 (or 1268 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 300120220 is about 17323.9781805450. The cubic root of 300120220 is about 669.5223595060.

Adding to 300120220 its reverse (22021003), we get a palindrome (322141223).

The spelling of 300120220 in words is "three hundred million, one hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 461 757 860 922 1514 1844 2305 3028 3785 4610 7570 9220 15140 19823 32551 39646 65102 79292 99115 130204 162755 198230 325510 348977 396460 651020 697954 1395908 1744885 3489770 6979540 15006011 30012022 60024044 75030055 150060110 300120220