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316208228 = 227172922907
BaseRepresentation
bin10010110110001…
…111010001100100
3211001000001010212
4102312033101210
51121422130403
651213234552
710556503610
oct2266172144
9731001125
10316208228
11152544a16
1289a92a58
135068437b
142ddd2340
151cb614d8
hex12d8f464

316208228 has 48 divisors (see below), whose sum is σ = 692737920. Its totient is φ = 123142656.

The previous prime is 316208173. The next prime is 316208251. The reversal of 316208228 is 822802613.

It is a junction number, because it is equal to n+sod(n) for n = 316208194 and 316208203.

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, 2351 + ... + 25257.

It is an arithmetic number, because the mean of its divisors is an integer number (14432040).

Almost surely, 2316208228 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 316208228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346368960).

316208228 is an abundant number, since it is smaller than the sum of its proper divisors (376529692).

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

316208228 is a wasteful number, since it uses less digits than its factorization.

316208228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22964 (or 22962 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 316208228 is about 17782.2447401896. The cubic root of 316208228 is about 681.2780376419.

The spelling of 316208228 in words is "three hundred sixteen million, two hundred eight thousand, two hundred twenty-eight".

Divisors: 1 2 4 7 14 17 28 29 34 58 68 116 119 203 238 406 476 493 812 986 1972 3451 6902 13804 22907 45814 91628 160349 320698 389419 641396 664303 778838 1328606 1557676 2657212 2725933 4650121 5451866 9300242 10903732 11293151 18600484 22586302 45172604 79052057 158104114 316208228