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68621112 = 23327178009
BaseRepresentation
bin1000001011100…
…01001100111000
311210010022110200
410011301030320
5120031333422
610450442200
71462161360
oct405611470
9153108420
1068621112
113580a06a
121ab93360
13112a8011
1491839a0
1560572ac
hex4171338

68621112 has 96 divisors (see below), whose sum is σ = 224920800. Its totient is φ = 18450432.

The previous prime is 68621107. The next prime is 68621131. The reversal of 68621112 is 21112686.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4564 + ... + 12572.

It is an arithmetic number, because the mean of its divisors is an integer number (2342925).

Almost surely, 268621112 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 68621112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112460400).

68621112 is an abundant number, since it is smaller than the sum of its proper divisors (156299688).

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

68621112 is a wasteful number, since it uses less digits than its factorization.

68621112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8045 (or 8038 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 68621112 is about 8283.7860909128. The cubic root of 68621112 is about 409.4044735068.

Adding to 68621112 its reverse (21112686), we get a palindrome (89733798).

The spelling of 68621112 in words is "sixty-eight million, six hundred twenty-one thousand, one hundred twelve".

Divisors: 1 2 3 4 6 7 8 9 12 14 17 18 21 24 28 34 36 42 51 56 63 68 72 84 102 119 126 136 153 168 204 238 252 306 357 408 476 504 612 714 952 1071 1224 1428 2142 2856 4284 8009 8568 16018 24027 32036 48054 56063 64072 72081 96108 112126 136153 144162 168189 192216 224252 272306 288324 336378 408459 448504 504567 544612 576648 672756 816918 953071 1009134 1089224 1225377 1345512 1633836 1906142 2018268 2450754 2859213 3267672 3812284 4036536 4901508 5718426 7624568 8577639 9803016 11436852 17155278 22873704 34310556 68621112