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68982704 = 2472361439
BaseRepresentation
bin1000001110010…
…01011110110000
311210210200110222
410013021132300
5120124421304
610502312212
71465225520
oct407113660
9153720428
1068982704
1135a367aa
121b128668
13113a378b
149239680
1560c94be
hex41c97b0

68982704 has 80 divisors (see below), whose sum is σ = 162370560. Its totient is φ = 27751680.

The previous prime is 68982691. The next prime is 68982709. The reversal of 68982704 is 40728986.

It is a super-2 number, since 2×689827042 = 9517226902303232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68982709) 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, 156917 + ... + 157355.

It is an arithmetic number, because the mean of its divisors is an integer number (2029632).

Almost surely, 268982704 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 68982704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81185280).

68982704 is an abundant number, since it is smaller than the sum of its proper divisors (93387856).

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

68982704 is a wasteful number, since it uses less digits than its factorization.

68982704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 68982704 is about 8305.5827008103. The cubic root of 68982704 is about 410.1223192443.

The spelling of 68982704 in words is "sixty-eight million, nine hundred eighty-two thousand, seven hundred four".

Divisors: 1 2 4 7 8 14 16 23 28 46 56 61 92 112 122 161 184 244 322 368 427 439 488 644 854 878 976 1288 1403 1708 1756 2576 2806 3073 3416 3512 5612 6146 6832 7024 9821 10097 11224 12292 19642 20194 22448 24584 26779 39284 40388 49168 53558 70679 78568 80776 107116 141358 157136 161552 187453 214232 282716 374906 428464 565432 615917 749812 1130864 1231834 1499624 2463668 2999248 4311419 4927336 8622838 9854672 17245676 34491352 68982704