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68755338 = 2331923527
BaseRepresentation
bin1000001100100…
…01111110001010
311210101010121000
410012101332022
5120100132323
610453355430
71463260611
oct406217612
9153333530
1068755338
11358a09a3
121b038b76
1311324142
1491ba878
156081e43
hex4191f8a

68755338 has 48 divisors (see below), whose sum is σ = 161300160. Its totient is φ = 21706056.

The previous prime is 68755331. The next prime is 68755339. The reversal of 68755338 is 83355786.

68755338 is a `hidden beast` number, since 68 + 7 + 553 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 68755293 and 68755302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68755331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17731 + ... + 21257.

It is an arithmetic number, because the mean of its divisors is an integer number (3360420).

Almost surely, 268755338 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68755338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80650080).

68755338 is an abundant number, since it is smaller than the sum of its proper divisors (92544822).

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

68755338 is a wasteful number, since it uses less digits than its factorization.

68755338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3576 (or 3551 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 68755338 is about 8291.8838631520. The cubic root of 68755338 is about 409.6712375397.

The spelling of 68755338 in words is "sixty-eight million, seven hundred fifty-five thousand, three hundred thirty-eight".

Divisors: 1 2 3 6 9 18 19 27 38 54 57 114 171 342 361 513 722 1026 1083 2166 3249 3527 6498 7054 9747 10581 19494 21162 31743 63486 67013 95229 134026 190458 201039 402078 603117 1206234 1273247 1809351 2546494 3618702 3819741 7639482 11459223 22918446 34377669 68755338