168638019840

Names of 168638019840

• Cardinal: 168638019840 can be written as One hundred sixty-eight billion, six hundred thirty-eight million, nineteen thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.6863801984 × 10¹¹

Factors of 168638019840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 64

Divisors of 168638019840

• Number of divisors d(n): 648
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 30 32 34 36 37 40 45 48 51 60 64 68 72 74 80 85 90 96 102 111 120 128 136 144 148 153 160 170 180 185 192 204 222 240 255 256 272 288 289 296 306 320 333 340 360 370 384 408 444 480 510 544 555 576 578 592 612 629 640 666 680 720 740 765 768 816 867 888 960 1020 1088 1110 1152 1156 1184 1224 1258 1280 1332 1360 1369 1440 1445 1480 1530 1632 1665 1734 1776 1887 1920 2040 2176 2220 2304 2312 2368 2448 2516 2601 2664 2720 2738 2880 2890 2960 3060 3145 3264 3330 3468 3552 3774 3840 4080 4107 4335 4352 4440 4624 4736 4896 5032 5202 5328 5440 5476 5661 5760 5780 5920 6120 6290 6528 6660 6845 6936 7104 7548 8160 8214 8670 8880 9248 9435 9472 9792 10064 10404 10656 10693 10880 10952 11322 11520 11560 11840 12240 12321 12580 13005 13056 13320 13690 13872 14208 15096 16320 16428 17340 17760 18496 18870 19584 20128 20535 20808 21312 21386 21760 21904 22644 23120 23273 23680 24480 24642 25160 26010 26640 27380 27744 28305 28416 30192 32079 32640 32856 34680 35520 36992 37740 39168 40256 41070 41616 42624 42772 43808 45288 46240 46546 47360 48960 49284 50320 50653 52020 53280 53465 54760 55488 56610 60384 61605 64158 65280 65712 69360 69819 71040 73984 75480 80512 82140 83232 85248 85544 87616 90576 92480 93092 96237 97920 98568 100640 101306 104040 106560 106930 109520 110976 113220 116365 120768 123210 128316 131424 138720 139638 142080 150960 151959 160395 161024 164280 166464 171088 175232 181152 184960 186184 192474 195840 197136 201280 202612 208080 209457 213120 213860 219040 221952 226440 232730 241536 246420 253265 256632 262848 277440 279276 301920 303918 320790 328560 332928 342176 349095 350464 362304 369920 372368 384948 394272 395641 402560 405224 416160 418914 426240 427720 438080 452880 455877 465460 481185 483072 492840 506530 513264 525696 554880 558552 603840 607836 641580 657120 665856 684352 698190 724608 744736 759795 769896 788544 791282 805120 810448 832320 837828 855440 861101 876160 905760 911754 930920 962370 985680 1013060 1026528 1047285 1051392 1109760 1117104 1186923 1207680 1215672 1283160 1314240 1368704 1396380 1449216 1489472 1519590 1539792 1577088 1582564 1620896 1664640 1675656 1710880 1722202 1752320 1811520 1823508 1861840 1924740 1971360 1978205 2026120 2053056 2094570 2234208 2279385 2373846 2415360 2431344 2566320 2583303 2628480 2737408 2792760 2978944 3039180 3079584 3154176 3165128 3241792 3329280 3351312 3421760 3444404 3560769 3623040 3647016 3723680 3849480 3942720 3956410 4052240 4106112 4189140 4305505 4468416 4558770 4747692 4862688 5132640 5166606 5256960 5585520 5934615 5957888 6078360 6159168 6330256 6483584 6702624 6843520 6888808 7121538 7246080 7294032 7447360 7698960 7749909 7885440 7912820 8104480 8212224 8378280 8611010 8936832 9117540 9495384 9725376 10265280 10333212 11171040 11869230 12156720 12318336 12660512 12916515 12967168 13405248 13687040 13777616 14243076 14588064 14638717 14894720 15397920 15499818 15770880 15825640 16208960 16756560 17222020 17803845 17873664 18235080 18990768 19450752 20530560 20666424 22342080 23738460 24313440 24636672 25321024 25833030 26810496 27555232 28486152 29176128 29277434 29789440 30795840 30999636 31651280 32417920 33513120 34444040 35607690 36470160 37981536 38749545 38901504 41061120 41332848 43916151 44684160 47476920 48626880 50642048 51666060 53620992 55110464 56972304 58352256 58554868 61591680 61999272 63302560 64835840 67026240 68888080 71215380 72940320 73193585 75963072 77499090 82665696 87832302 89368320 94953840 97253760 101284096 103332120 110220928 113944608 116704512 117109736 123183360 123998544 126605120 131748453 134052480 137776160 142430760 145880640 146387170 151926144 154998180 165331392 175664604 189907680 194507520 206664240 219580755 220441856 227889216 234219472 247997088 253210240 263496906 268104960 275552320 284861520 291761280 292774340 303852288 309996360 330662784 351329208 379815360 413328480 439161510 455778432 468438944 495994176 506420480 526993812 551104640 569723040 583522560 585548680 619992720 658742265 661325568 702658416 759630720 826656960 878323020 911556864 936877888 991988352 1053987624 1102209280 1139446080 1171097360 1239985440 1317484530 1405316832 1519261440 1653313920 1756646040 1873755776 1983976704 2107975248 2278892160 2342194720 2479970880 2634969060 2810633664 3306627840 3513292080 3747511552 4215950496 4557784320 4684389440 4959941760 5269938120 5621267328 7026584160 8431900992 9368778880 9919883520 10539876240 11242534656 14053168320 16863801984 18737557760 21079752480 28106336640 33727603968 42159504960 56212673280 84319009920 168638019840
• Sum of all divisors σ(n): 637027296360
• Sum of proper divisors (its aliquot sum) s(n): 468389276520
• 168638019840 is an abundant number, because the sum of its proper divisors (468389276520) is greater than itself. Its abundance is 299751256680

Bases of 168638019840

• Binary: 10011101000011100110111111100100000000₂
• Hexadecimal: 0x27439BF900
• Base-36: 25GYQ0W0

Squares and roots of 168638019840

• 168638019840 squared (168638019840²) is 28438781735556233625600
• 168638019840 cubed (168638019840³) is 4795859838546161759589607931904000
• The square root of 168638019840 is 410655.5975997405
• The cube root of 168638019840 is 5524.8246413771

Scales and comparisons

• 168,638,019,840 seconds is equal to 5,362 years, 8 weeks, 4 days, 22 hours, 24 minutes.
• To count from 1 to 168,638,019,840 would take you about ten thousand, seven hundred twenty-four 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 168638019840 cubic inches would be around 460.4 feet tall.

Recreational maths with 168638019840

• 168638019840 backwards is 048910836861
• The number of decimal digits it has is: 12
• The sum of 168638019840's digits is 54
• More coming soon!