128491064640

Names of 128491064640

• Cardinal: 128491064640 can be written as One hundred twenty-eight billion, four hundred ninety-one million, sixty-four thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.2849106464 × 10¹¹

Factors of 128491064640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 1036

Divisors of 128491064640

• Number of divisors d(n): 560
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 27 30 32 34 36 40 45 48 51 54 60 64 68 72 80 81 85 90 96 102 108 120 135 136 144 153 160 162 170 180 192 204 216 240 255 270 272 288 289 306 320 324 340 360 405 408 432 459 480 510 540 544 576 578 612 648 680 720 765 810 816 864 867 918 960 1009 1020 1080 1088 1156 1224 1296 1360 1377 1440 1445 1530 1620 1632 1728 1734 1836 2018 2040 2160 2295 2312 2448 2592 2601 2720 2754 2880 2890 3027 3060 3240 3264 3468 3672 4036 4080 4320 4335 4590 4624 4896 4913 5045 5184 5202 5440 5508 5780 6054 6120 6480 6885 6936 7344 7803 8072 8160 8640 8670 9081 9180 9248 9792 9826 10090 10404 11016 11560 12108 12240 12960 13005 13770 13872 14688 14739 15135 15606 16144 16320 17153 17340 18162 18360 18496 19652 20180 20808 22032 23120 23409 24216 24480 24565 25920 26010 27243 27540 27744 29376 29478 30270 31212 32288 34306 34680 36324 36720 39015 39304 40360 41616 44064 44217 45405 46240 46818 48432 48960 49130 51459 52020 54486 55080 55488 58956 60540 62424 64576 68612 69360 72648 73440 73695 78030 78608 80720 81729 83232 85765 88128 88434 90810 92480 93636 96864 98260 102918 104040 108972 110160 117045 117912 121080 124848 132651 136215 137224 138720 145296 146880 147390 154377 156060 157216 161440 163458 166464 171530 176868 181620 187272 193728 196520 205836 208080 217944 220320 221085 234090 235824 242160 249696 257295 265302 272430 274448 277440 290592 291601 294780 308754 312120 314432 322880 326916 343060 353736 363240 374544 393040 397953 408645 411672 416160 435888 440640 442170 463131 468180 471648 484320 499392 514590 530604 544860 548896 581184 583202 589560 617508 624240 653832 663255 686120 707472 726480 749088 771885 786080 795906 817290 823344 832320 871776 874803 884340 926262 936360 943296 968640 1029180 1061208 1089720 1097792 1166404 1179120 1235016 1248480 1307664 1326510 1372240 1389393 1414944 1452960 1458005 1498176 1543770 1572160 1591812 1634580 1646688 1743552 1749606 1768680 1852524 1872720 1989765 2058360 2122416 2179440 2315655 2332808 2358240 2470032 2496960 2615328 2624409 2653020 2744480 2778786 2829888 2905920 2916010 3087540 3183624 3269160 3293376 3499212 3537360 3705048 3745440 3979530 4116720 4244832 4358880 4374015 4631310 4665616 4716480 4940064 4957217 5230656 5248818 5306040 5488960 5557572 5832020 6175080 6367248 6538320 6946965 6998424 7074720 7410096 7490880 7873227 7959060 8233440 8489664 8717760 8748030 9262620 9331232 9880128 9914434 10497636 10612080 11115144 11664040 12350160 12734496 13076640 13122045 13893930 13996848 14149440 14820192 14871651 15746454 15918120 16466880 17496060 18525240 18662464 19828868 20995272 21224160 22230288 23328080 23619681 24700320 24786085 25468992 26153280 26244090 27787860 27993696 29640384 29743302 31492908 31836240 34992120 37050480 39366135 39657736 41990544 42448320 44460576 44614953 46656160 47239362 49400640 49572170 52488180 55575720 55987392 59486604 62985816 63672480 69984240 74100960 74358255 78732270 79315472 83981088 88921152 89229906 93312320 94478724 99144340 104976360 111151440 118098405 118973208 125971632 127344960 133844859 139968480 148201920 148716510 157464540 158630944 167962176 178459812 188957448 198288680 209952720 222302880 223074765 236196810 237946416 251943264 267689718 279936960 297433020 314929080 317261888 356919624 377914896 396577360 401534577 419905440 444605760 446149530 472393620 475892832 503886528 535379436 594866040 629858160 669224295 713839248 755829792 793154720 803069154 839810880 892299060 944787240 951785664 1070758872 1189732080 1259716320 1338448590 1427678496 1511659584 1586309440 1606138308 1784598120 1889574480 2007672885 2141517744 2379464160 2519432640 2676897180 2855356992 3212276616 3569196240 3779148960 4015345770 4283035488 4758928320 5353794360 6424553232 7138392480 7558297920 8030691540 8566070976 10707588720 12849106464 14276784960 16061383080 21415177440 25698212928 32122766160 42830354880 64245532320 128491064640
• Sum of all divisors σ(n): 486107384400
• Sum of proper divisors (its aliquot sum) s(n): 357616319760
• 128491064640 is an abundant number, because the sum of its proper divisors (357616319760) is greater than itself. Its abundance is 229125255120

Bases of 128491064640

• Binary: 1110111101010101010100000110101000000₂
• Hexadecimal: 0x1DEAAA0D40
• Base-36: 1N109G00

Squares and roots of 128491064640

• 128491064640 squared (128491064640²) is 16509953692320658329600
• 128491064640 cubed (128491064640³) is 2121381527083380381035988025344000
• The square root of 128491064640 is 358456.5031353175
• The cube root of 128491064640 is 5046.1207949243

Scales and comparisons

• 128,491,064,640 seconds is equal to 4,085 years, 32 weeks, 1 day, 2 hours, 24 minutes.
• To count from 1 to 128,491,064,640 would take you about eight thousand, one hundred seventy-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 128491064640 cubic inches would be around 420.5 feet tall.

Recreational maths with 128491064640

• 128491064640 backwards is 046460194821
• 128491064640 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128491064640's digits is 45
• More coming soon!