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68317304 = 23113179317
BaseRepresentation
bin1000001001001…
…11000001111000
311202112212201112
410010213001320
5114442123204
610440135452
71456454546
oct404470170
9152485645
1068317304
1135621890
121aa67588
13111cc953
149104d96
155ee726e
hex4127078

68317304 has 64 divisors (see below), whose sum is σ = 146534400. Its totient is φ = 29577600.

The previous prime is 68317303. The next prime is 68317313. The reversal of 68317304 is 40371386.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68317303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215354 + ... + 215670.

It is an arithmetic number, because the mean of its divisors is an integer number (2289600).

Almost surely, 268317304 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 68317304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73267200).

68317304 is an abundant number, since it is smaller than the sum of its proper divisors (78217096).

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

68317304 is a wasteful number, since it uses less digits than its factorization.

68317304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 68317304 is about 8265.4282405693. The cubic root of 68317304 is about 408.7993907030.

The spelling of 68317304 in words is "sixty-eight million, three hundred seventeen thousand, three hundred four".

Divisors: 1 2 4 8 11 22 31 44 62 79 88 124 158 248 316 317 341 632 634 682 869 1268 1364 1738 2449 2536 2728 3476 3487 4898 6952 6974 9796 9827 13948 19592 19654 25043 26939 27896 39308 50086 53878 78616 100172 107756 108097 200344 215512 216194 275473 432388 550946 776333 864776 1101892 1552666 2203784 3105332 6210664 8539663 17079326 34158652 68317304