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68611116 = 223717232089
BaseRepresentation
bin1000001011011…
…10110000101100
311210002210202110
410011232300230
5120031023431
610450324020
71462120260
oct405566054
9153083673
1068611116
1135802602
121ab89610
13112a35c2
1491800a0
156054346
hex416ec2c

68611116 has 96 divisors (see below), whose sum is σ = 202245120. Its totient is φ = 17639424.

The previous prime is 68611111. The next prime is 68611141. The reversal of 68611116 is 61111686.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68611111) 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, 31800 + ... + 33888.

It is an arithmetic number, because the mean of its divisors is an integer number (2106720).

Almost surely, 268611116 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 68611116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101122560).

68611116 is an abundant number, since it is smaller than the sum of its proper divisors (133634004).

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

68611116 is a wasteful number, since it uses less digits than its factorization.

68611116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143 (or 2141 counting only the distinct ones).

The product of its digits is 1728, while the sum is 30.

The square root of 68611116 is about 8283.1827216354. The cubic root of 68611116 is about 409.3845932993.

The spelling of 68611116 in words is "sixty-eight million, six hundred eleven thousand, one hundred sixteen".

Divisors: 1 2 3 4 6 7 12 14 17 21 23 28 34 42 46 51 68 69 84 92 102 119 138 161 204 238 276 322 357 391 476 483 644 714 782 966 1173 1428 1564 1932 2089 2346 2737 4178 4692 5474 6267 8211 8356 10948 12534 14623 16422 25068 29246 32844 35513 43869 48047 58492 71026 87738 96094 106539 142052 144141 175476 192188 213078 248591 288282 336329 426156 497182 576564 672658 745773 816799 994364 1008987 1345316 1491546 1633598 2017974 2450397 2983092 3267196 4035948 4900794 5717593 9801588 11435186 17152779 22870372 34305558 68611116