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225088668 = 223271953887
BaseRepresentation
bin11010110101010…
…01010010011100
3120200112200121100
431122221102130
5430110314133
634200233100
75402136120
oct1532512234
9520480540
10225088668
111060694a2
126346b790
133782c97c
1421c73580
1514b62e13
hexd6a949c

225088668 has 144 divisors (see below), whose sum is σ = 698181120. Its totient is φ = 59709312.

The previous prime is 225088663. The next prime is 225088679. The reversal of 225088668 is 866880522.

225088668 is a `hidden beast` number, since 2 + 2 + 508 + 86 + 68 = 666.

225088668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225088663) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 253321 + ... + 254207.

It is an arithmetic number, because the mean of its divisors is an integer number (4848480).

Almost surely, 2225088668 is an apocalyptic number.

225088668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225088668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349090560).

225088668 is an abundant number, since it is smaller than the sum of its proper divisors (473092452).

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

225088668 is a wasteful number, since it uses less digits than its factorization.

225088668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 971 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 225088668 is about 15002.9553088716. The cubic root of 225088668 is about 608.3000848699.

The spelling of 225088668 in words is "two hundred twenty-five million, eighty-eight thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 19 21 28 36 38 42 53 57 63 76 84 106 114 126 133 159 171 212 228 252 266 318 342 371 399 477 532 636 684 742 798 887 954 1007 1113 1197 1484 1596 1774 1908 2014 2226 2394 2661 3021 3339 3548 4028 4452 4788 5322 6042 6209 6678 7049 7983 9063 10644 12084 12418 13356 14098 15966 16853 18126 18627 21147 24836 28196 31932 33706 36252 37254 42294 47011 50559 55881 63441 67412 74508 84588 94022 101118 111762 117971 126882 141033 151677 188044 202236 223524 235942 253764 282066 303354 329077 353913 423099 471884 564132 606708 658154 707826 846198 893209 987231 1061739 1316308 1415652 1692396 1786418 1974462 2123478 2679627 2961693 3572836 3948924 4246956 5359254 5923386 6252463 8038881 10718508 11846772 12504926 16077762 18757389 25009852 32155524 37514778 56272167 75029556 112544334 225088668