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228081370244 = 227132929577307
BaseRepresentation
bin1101010001101010110…
…1011000010010000100
3210210201101100002122012
43110122231120102010
512214102312321434
6252440143153352
722323032442050
oct3243255302204
9723641302565
10228081370244
1188801a95302
1238253ba5858
131867b059ba0
14b0797b2c60
155ded9103ce
hex351ab58484

228081370244 has 96 divisors (see below), whose sum is σ = 508433345280. Its totient is φ = 87077233152.

The previous prime is 228081370201. The next prime is 228081370249. The reversal of 228081370244 is 442073180822.

It is a super-2 number, since 2×2280813702442 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (228081370249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31210439 + ... + 31217745.

It is an arithmetic number, because the mean of its divisors is an integer number (5296180680).

Almost surely, 2228081370244 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 228081370244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254216672640).

228081370244 is an abundant number, since it is smaller than the sum of its proper divisors (280351975036).

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

228081370244 is a wasteful number, since it uses less digits than its factorization.

228081370244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10317 (or 10315 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The spelling of 228081370244 in words is "two hundred twenty-eight billion, eighty-one million, three hundred seventy thousand, two hundred forty-four".

Divisors: 1 2 4 7 13 14 26 28 29 52 58 91 116 182 203 364 377 406 754 812 1508 2639 2957 5278 5914 7307 10556 11828 14614 20699 29228 38441 41398 51149 76882 82796 85753 94991 102298 153764 171506 189982 204596 211903 269087 343012 379964 423806 538174 600271 664937 847612 1076348 1114789 1200542 1329874 1483321 2229578 2401084 2659748 2754739 2966642 4459156 5509478 5933284 7803523 11018956 15607046 19283173 21606799 31214092 38566346 43213598 77132692 86427196 151247593 280888387 302495186 561776774 604990372 626597171 1123553548 1253194342 1966218709 2506388684 3932437418 4386180197 7864874836 8145763223 8772360394 16291526446 17544720788 32583052892 57020342561 114040685122 228081370244