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228663090012 = 223756918712557
BaseRepresentation
bin1101010011110101100…
…0011101101101011100
3210212012220221112010210
43110331120131231130
512221300222340022
6253014003332420
722343325124050
oct3247530355534
9725186845123
10228663090012
1188a80397a45
1238396981110
1318741725076
14b0d2b5bc60
155e34a1ba0c
hex353d61db5c

228663090012 has 96 divisors (see below), whose sum is σ = 611405383680. Its totient is φ = 65157143040.

The previous prime is 228663089959. The next prime is 228663090037. The reversal of 228663090012 is 210090366822.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89425038 + ... + 89427594.

It is an arithmetic number, because the mean of its divisors is an integer number (6368806080).

Almost surely, 2228663090012 is an apocalyptic number.

It is an amenable number.

228663090012 is an abundant number, since it is smaller than the sum of its proper divisors (382742293668).

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

228663090012 is a wasteful number, since it uses less digits than its factorization.

228663090012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011 (or 5009 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 228663090012 in words is "two hundred twenty-eight billion, six hundred sixty-three million, ninety thousand, twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 569 1138 1707 1871 2276 2557 3414 3742 3983 5114 5613 6828 7484 7671 7966 10228 11226 11949 13097 15342 15932 17899 22452 23898 26194 30684 35798 39291 47796 52388 53697 71596 78582 107394 157164 214788 1064599 1454933 2129198 2909866 3193797 4258396 4364799 4784147 5819732 6387594 7452193 8729598 9568294 10184531 12775188 14352441 14904386 17459196 19136588 20369062 22356579 28704882 29808772 30553593 33489029 40738124 44713158 57409764 61107186 66978058 89426316 100467087 122214372 133956116 200934174 401868348 2722179643 5444359286 8166538929 10888718572 16333077858 19055257501 32666155716 38110515002 57165772503 76221030004 114331545006 228663090012