Search a number
-
+
68068007480 = 235111726933829
BaseRepresentation
bin111111011001001010…
…110101111000111000
320111200202222001101002
4333121022311320320
52103400402214410
651134153344132
74626534342254
oct773112657070
9214622861332
1068068007480
112695a685540
1211237a08048
13655a0c1c05
14341a1c1264
151b85bd37a5
hexfd92b5e38

68068007480 has 128 divisors (see below), whose sum is σ = 177566904000. Its totient is φ = 23208714240.

The previous prime is 68068007479. The next prime is 68068007503. The reversal of 68068007480 is 8470086086.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1995206 + ... + 2029034.

Almost surely, 268068007480 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 68068007480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88783452000).

68068007480 is an abundant number, since it is smaller than the sum of its proper divisors (109498896520).

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

68068007480 is a wasteful number, since it uses less digits than its factorization.

68068007480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34137 (or 34133 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 68068007480 in words is "sixty-eight billion, sixty-eight million, seven thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 11 17 20 22 34 40 44 55 68 85 88 110 136 170 187 220 269 340 374 440 538 680 748 935 1076 1345 1496 1870 2152 2690 2959 3740 4573 5380 5918 7480 9146 10760 11836 14795 18292 22865 23672 29590 33829 36584 45730 50303 59180 67658 91460 100606 118360 135316 169145 182920 201212 251515 270632 338290 372119 402424 503030 575093 676580 744238 1006060 1150186 1353160 1488476 1860595 2012120 2300372 2875465 2976952 3721190 4600744 5750930 6326023 7442380 9100001 11501860 12652046 14884760 18200002 23003720 25304092 31630115 36400004 45500005 50608184 63260230 72800008 91000010 100100011 126520460 154700017 182000020 200200022 253040920 309400034 364000040 400400044 500500055 618800068 773500085 800800088 1001000110 1237600136 1547000170 1701700187 2002000220 3094000340 3403400374 4004000440 6188000680 6806800748 8508500935 13613601496 17017001870 34034003740 68068007480