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68789124 = 223231531163
BaseRepresentation
bin1000001100110…
…10001110000100
311210102211221100
410012122032010
5120102222444
610454220100
71463461245
oct406321604
9153384840
1068789124
1135914318
121b054630
1311336631
1491c8ccc
15608be69
hex419a384

68789124 has 72 divisors (see below), whose sum is σ = 183036672. Its totient is φ = 21752640.

The previous prime is 68789117. The next prime is 68789143. The reversal of 68789124 is 42198786.

It is a self number, because there is not a number n which added to its sum of digits gives 68789124.

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, 58567 + ... + 59729.

It is an arithmetic number, because the mean of its divisors is an integer number (2542176).

Almost surely, 268789124 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 68789124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91518336).

68789124 is an abundant number, since it is smaller than the sum of its proper divisors (114247548).

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

68789124 is a wasteful number, since it uses less digits than its factorization.

68789124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257 (or 1252 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 68789124 is about 8293.9209063024. The cubic root of 68789124 is about 409.7383299590.

The spelling of 68789124 in words is "sixty-eight million, seven hundred eighty-nine thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 31 36 53 62 93 106 124 159 186 212 279 318 372 477 558 636 954 1116 1163 1643 1908 2326 3286 3489 4652 4929 6572 6978 9858 10467 13956 14787 19716 20934 29574 36053 41868 59148 61639 72106 108159 123278 144212 184917 216318 246556 324477 369834 432636 554751 648954 739668 1109502 1297908 1910809 2219004 3821618 5732427 7643236 11464854 17197281 22929708 34394562 68789124