128817489920
128,817,489,920 is an even composite number composed of five prime numbers multiplied together.
What does the number 128817489920 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 288 divisors.
128817489920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 128817489920:
211 × 5 × 7 × 972 × 191
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 97 × 97 × 191)See below for interesting mathematical facts about the number 128817489920 from the Numbermatics database.
Names of 128817489920
- Cardinal: 128817489920 can be written as One hundred twenty-eight billion, eight hundred seventeen million, four hundred eighty-nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 1.2881748992 × 1011
Factors of 128817489920
Divisors of 128817489920
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 97 112 128 140 160 191 194 224 256 280 320 382 388 448 485 512 560 640 679 764 776 896 955 970 1024 1120 1280 1337 1358 1528 1552 1792 1910 1940 2048 2240 2560 2674 2716 3056 3104 3395 3584 3820 3880 4480 5120 5348 5432 6112 6208 6685 6790 7168 7640 7760 8960 9409 10240 10696 10864 12224 12416 13370 13580 14336 15280 15520 17920 18527 18818 21392 21728 24448 24832 26740 27160 30560 31040 35840 37054 37636 42784 43456 47045 48896 49664 53480 54320 61120 62080 65863 71680 74108 75272 85568 86912 92635 94090 97792 99328 106960 108640 122240 124160 129689 131726 148216 150544 171136 173824 185270 188180 195584 198656 213920 217280 244480 248320 259378 263452 296432 301088 329315 342272 347648 370540 376360 391168 427840 434560 488960 496640 518756 526904 592864 602176 648445 658630 684544 695296 741080 752720 855680 869120 977920 993280 1037512 1053808 1185728 1204352 1296890 1317260 1369088 1390592 1482160 1505440 1711360 1738240 1797119 1955840 2075024 2107616 2371456 2408704 2593780 2634520 2738176 2964320 3010880 3422720 3476480 3594238 4150048 4215232 4742912 4817408 5187560 5269040 5928640 6021760 6845440 6952960 7188476 8300096 8430464 8985595 9485824 9634816 10375120 10538080 11857280 12043520 12579833 13690880 14376952 16600192 16860928 17971190 18971648 19269632 20750240 21076160 23714560 24087040 25159666 28753904 33200384 33721856 35942380 37943296 41500480 42152320 47429120 48174080 50319332 57507808 62899165 66400768 67443712 71884760 83000960 84304640 94858240 96348160 100638664 115015616 125798330 132801536 134887424 143769520 166001920 168609280 189716480 201277328 230031232 251596660 265603072 287539040 332003840 337218560 402554656 460062464 503193320 575078080 664007680 674437120 805109312 920124928 1006386640 1150156160 1328015360 1610218624 1840249856 2012773280 2300312320 3220437248 3680499712 4025546560 4600624640 6440874496 8051093120 9201249280 12881748992 16102186240 18402498560 25763497984 32204372480 64408744960 128817489920
- Sum of all divisors σ(n): 358789616640
- Sum of proper divisors (its aliquot sum) s(n): 229972126720
- 128817489920 is an abundant number, because the sum of its proper divisors (229972126720) is greater than itself. Its abundance is 101154636800
Bases of 128817489920
- Binary: 11101111111100001111011101000000000002
- Hexadecimal: 0x1DFE1EE800
- Base-36: 1N6ELVCW
Squares and roots of 128817489920
- 128817489920 squared (1288174899202) is 16593945709289301606400
- 128817489920 cubed (1288174899203) is 2137590434139401860046271807488000
-
The
square root of 128817489920 is 358911.5349497699 -
The
cube root of 128817489920 is 5050.3903226717
Scales and comparisons
How big is 128817489920?- 128,817,489,920 seconds is equal to 4,095 years, 51 weeks, 6 days, 4 hours, 5 minutes, 20 seconds.
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To count from 1 to 128,817,489,920 would take you about eight thousand, one hundred ninety-one years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 128817489920 cubic inches would be around 420.9 feet tall.
Recreational maths with 128817489920
- 128817489920 backwards is 029984718821
- The number of decimal digits it has is: 12
- The sum of 128817489920's digits is 59
- More coming soon!
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