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5220228 = 22313109307
BaseRepresentation
bin10011111010011110000100
3100211012210210
4103322132010
52314021403
6303515420
762241216
oct23723604
910735723
105220228
112a46042
1218b8b70
13110a0c0
1499c5b6
156d1b03
hex4fa784

5220228 has 48 divisors (see below), whose sum is σ = 13280960. Its totient is φ = 1586304.

The previous prime is 5220227. The next prime is 5220233. The reversal of 5220228 is 8220225.

5220228 is digitally balanced in base 4 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (5220223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16851 + ... + 17157.

Almost surely, 25220228 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 5220228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6640480).

5220228 is an abundant number, since it is smaller than the sum of its proper divisors (8060732).

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

5220228 is a wasteful number, since it uses less digits than its factorization.

5220228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 5220228 is about 2284.7818276588. The cubic root of 5220228 is about 173.4721750815.

The spelling of 5220228 in words is "five million, two hundred twenty thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 109 156 218 307 327 436 614 654 921 1228 1308 1417 1842 2834 3684 3991 4251 5668 7982 8502 11973 15964 17004 23946 33463 47892 66926 100389 133852 200778 401556 435019 870038 1305057 1740076 2610114 5220228