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68901066 = 23213523563
BaseRepresentation
bin1000001101101…
…01100011001010
311210122112111100
410012311203022
5120114313231
610500442230
71464435513
oct406654312
9153575440
1068901066
1135990433
121b0a9376
1311375580
149217a0a
1560b01e6
hex41b58ca

68901066 has 48 divisors (see below), whose sum is σ = 161362656. Its totient is φ = 21122208.

The previous prime is 68901043. The next prime is 68901073. The reversal of 68901066 is 66010986.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 68901066.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122101 + ... + 122663.

It is an arithmetic number, because the mean of its divisors is an integer number (3361722).

Almost surely, 268901066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68901066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80681328).

68901066 is an abundant number, since it is smaller than the sum of its proper divisors (92461590).

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

68901066 is a wasteful number, since it uses less digits than its factorization.

68901066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107 (or 1104 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 68901066 is about 8300.6665997376. Note that the first 3 decimals coincide. The cubic root of 68901066 is about 409.9604681298.

The spelling of 68901066 in words is "sixty-eight million, nine hundred one thousand, sixty-six".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 523 563 1046 1126 1569 1689 3138 3378 4707 5067 6799 7319 9414 10134 13598 14638 20397 21957 40794 43914 61191 65871 122382 131742 294449 588898 883347 1766694 2650041 3827837 5300082 7655674 11483511 22967022 34450533 68901066