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130568228 = 227171914437
BaseRepresentation
bin1111100100001…
…01000000100100
3100002200112221022
413302011000210
5231411140403
620542310312
73143545250
oct762050044
9302615838
10130568228
116777a92a
1237888398
132108730b
14134ab260
15b6e1d38
hex7c85024

130568228 has 48 divisors (see below), whose sum is σ = 291070080. Its totient is φ = 49890816.

The previous prime is 130568189. The next prime is 130568233. The reversal of 130568228 is 822865031.

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, 1826 + ... + 16262.

It is an arithmetic number, because the mean of its divisors is an integer number (6063960).

Almost surely, 2130568228 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 130568228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145535040).

130568228 is an abundant number, since it is smaller than the sum of its proper divisors (160501852).

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

130568228 is a wasteful number, since it uses less digits than its factorization.

130568228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14484 (or 14482 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 130568228 is about 11426.6455270127. The cubic root of 130568228 is about 507.3167131571.

The spelling of 130568228 in words is "one hundred thirty million, five hundred sixty-eight thousand, two hundred twenty-eight".

Divisors: 1 2 4 7 14 17 19 28 34 38 68 76 119 133 238 266 323 476 532 646 1292 2261 4522 9044 14437 28874 57748 101059 202118 245429 274303 404236 490858 548606 981716 1097212 1718003 1920121 3436006 3840242 4663151 6872012 7680484 9326302 18652604 32642057 65284114 130568228