72139907840

Names of 72139907840

• Cardinal: 72139907840 can be written as Seventy-two billion, one hundred thirty-nine million, nine hundred seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 7.213990784 × 10¹⁰

Factors of 72139907840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 170

Divisors of 72139907840

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 4 5 7 8 10 11 13 14 16 20 22 26 28 32 35 40 44 52 55 56 61 64 65 70 71 77 80 88 91 104 110 112 122 128 130 140 142 143 154 160 169 176 182 208 220 224 244 256 260 280 284 286 305 308 320 338 352 355 364 385 416 427 440 448 455 488 497 520 560 568 572 610 616 640 671 676 704 710 715 728 770 781 793 832 845 854 880 896 910 923 976 994 1001 1040 1120 1136 1144 1183 1220 1232 1280 1342 1352 1408 1420 1430 1456 1540 1562 1586 1664 1690 1708 1760 1792 1820 1846 1859 1952 1988 2002 2080 2135 2240 2272 2288 2366 2440 2464 2485 2684 2704 2816 2840 2860 2912 3080 3124 3172 3328 3355 3380 3416 3520 3640 3692 3718 3904 3905 3965 3976 4004 4160 4270 4331 4480 4544 4576 4615 4697 4732 4880 4928 4970 5005 5368 5408 5467 5551 5680 5720 5824 5915 6160 6248 6344 6461 6710 6760 6832 7040 7280 7384 7436 7808 7810 7930 7952 8008 8320 8540 8662 8723 8960 9088 9152 9230 9295 9394 9464 9760 9856 9940 10010 10153 10309 10736 10816 10934 11102 11360 11440 11648 11830 11999 12320 12496 12688 12922 13013 13420 13520 13664 14080 14560 14768 14872 15616 15620 15860 15904 16016 16640 17080 17324 17446 18176 18304 18460 18590 18788 18928 19520 19712 19880 20020 20306 20618 21472 21632 21655 21868 22204 22720 22880 23296 23485 23660 23998 24640 24992 25376 25844 26026 26840 27040 27328 27335 27755 29120 29536 29744 30317 31240 31720 31808 32032 32305 34160 34648 34892 36608 36920 37180 37576 37856 39040 39760 40040 40612 41236 42944 43264 43310 43615 43736 44408 45440 45760 46970 47320 47641 47996 49280 49984 50752 50765 51545 51688 52052 53680 54080 54656 54670 55510 56303 58240 59072 59488 59995 60634 61061 62480 63440 63616 64064 64610 65065 68320 69296 69784 71071 72163 73840 74360 75152 75712 78080 79520 80080 81224 82472 83993 85888 86620 87230 87472 88816 90880 91520 93940 94640 95282 95992 98560 99968 101504 101530 103090 103376 104104 107360 108160 109312 109340 111020 112606 113399 116480 118144 118976 119990 121268 122122 124960 126880 127232 128128 129220 130130 131989 136640 138592 139568 142142 144326 147680 148720 150304 151424 151585 159040 160160 162448 164944 167986 171776 173240 174460 174944 177632 183040 187880 189280 190564 191984 199936 203008 203060 206180 206752 208208 214720 216320 218680 222040 225212 226798 236288 237952 238205 239980 242536 244244 249920 253760 256256 258440 260260 263978 273280 277184 279136 281515 284284 288652 295360 297440 300608 302848 303170 305305 318080 320320 324896 329888 333487 335972 346480 348920 349888 355264 355355 360815 375760 378560 381128 383968 394121 406120 412360 413504 416416 419965 429440 437360 444080 450424 453596 475904 476410 479960 485072 488488 499840 507520 516880 520520 527956 546560 554368 558272 563030 566995 568568 577304 590720 594880 601216 606340 610610 619333 636160 640640 649792 659776 659945 666974 671944 692960 697840 699776 710528 710710 721630 731939 751520 757120 762256 767936 788242 793793 812240 824720 827008 832832 839930 858880 874720 888160 900848 907192 923923 952820 959920 970144 976976 999680 1015040 1033760 1041040 1055912 1108736 1116544 1126060 1133990 1137136 1154608 1181440 1189760 1202432 1212680 1221220 1238666 1281280 1299584 1319552 1319890 1333948 1343888 1385920 1395680 1399552 1421056 1421420 1443260 1463878 1503040 1514240 1524512 1535872 1576484 1587586 1624480 1649440 1654016 1665664 1667435 1679860 1749440 1776320 1801696 1814384 1847846 1905640 1919840 1940288 1953952 1970605 2067520 2082080 2111824 2233088 2252120 2267980 2274272 2309216 2379520 2425360 2442440 2477332 2599168 2639104 2639780 2667896 2687776 2771840 2791360 2842840 2886520 2927756 3006080 3049024 3071744 3096665 3152968 3175172 3248960 3298880 3331328 3334870 3359720 3498880 3552640 3603392 3628768 3659695 3695692 3811280 3839680 3880576 3907904 3941210 3968965 4135040 4164160 4223648 4335331 4504240 4535960 4548544 4618432 4619615 4850720 4884880 4954664 5123573 5279560 5335792 5375552 5543680 5582720 5685680 5773040 5855512 6012160 6098048 6193330 6305936 6350344 6497920 6597760 6669740 6719440 6997760 7105280 7206784 7257536 7319390 7391384 7622560 7679360 7761152 7815808 7882420 7937930 8051329 8270080 8328320 8447296 8670662 9008480 9071920 9097088 9236864 9239230 9701440 9769760 9909328 10247146 10559120 10671584 10751104 11165440 11371360 11546080 11711024 12196096 12386660 12611872 12700688 12995840 13195520 13339480 13438880 14413568 14515072 14638780 14782768 15245120 15358720 15631616 15764840 15875860 16102658 16656640 16894592 17341324 18016960 18143840 18194176 18473728 18478460 19402880 19539520 19818656 20494292 21118240 21343168 21502208 21676655 22742720 23092160 23422048 24773320 25223744 25401376 25617865 26678960 26877760 29030144 29277560 29565536 30490240 31529680 31751720 32205316 33789184 34682648 36033920 36287680 36956920 38805760 39079040 39637312 40256645 40988584 42236480 42686336 43353310 45485440 46184320 46844096 49546640 50447488 50802752 51235730 53357920 53755520 56359303 58555120 59131072 60980480 63059360 63503440 64410632 69365296 72067840 72575360 73913840 78158080 79274624 80513290 81977168 84472960 85372672 86706620 90970880 92368640 93688192 99093280 100894976 101605504 102471460 106715840 107511040 112718606 117110240 118262144 126118720 127006880 128821264 138730592 145150720 147827680 158549248 161026580 163954336 168945920 173413240 187376384 198186560 203211008 204942920 213431680 225437212 234220480 236524288 252237440 254013760 257642528 277461184 281796515 295655360 322053160 327908672 346826480 396373120 409885840 426863360 450874424 468440960 504474880 508027520 515285056 554922368 563593030 591310720 644106320 655817344 693652960 792746240 819771680 901748848 936881920 1016055040 1030570112 1109844736 1127186060 1182621440 1288212640 1311634688 1387305920 1639543360 1803497696 2061140224 2254372120 2576425280 2774611840 3279086720 3606995392 4508744240 5152850560 5549223680 6558173440 7213990784 9017488480 10305701120 14427981568 18034976960 36069953920 72139907840
• Sum of all divisors σ(n): 240446610432
• Sum of proper divisors (its aliquot sum) s(n): 168306702592
• 72139907840 is an abundant number, because the sum of its proper divisors (168306702592) is greater than itself. Its abundance is 96166794752

Bases of 72139907840

• Binary: 1000011001011110111111010001100000000₂
• Hexadecimal: 0x10CBDFA300
• Base-36: X528L4W

Squares and roots of 72139907840

• 72139907840 squared (72139907840²) is 5204166303163693465600
• 72139907840 cubed (72139907840³) is 375428077494262347042394210304000
• The square root of 72139907840 is 268588.7336430923
• The cube root of 72139907840 is 4162.8605325669

Scales and comparisons

• 72,139,907,840 seconds is equal to 2,293 years, 42 weeks, 6 days, 15 hours, 17 minutes, 20 seconds.
• To count from 1 to 72,139,907,840 would take you about four thousand, five hundred eighty-seven 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 72139907840 cubic inches would be around 346.9 feet tall.

Recreational maths with 72139907840

• 72139907840 backwards is 04870993127
• The number of decimal digits it has is: 11
• The sum of 72139907840's digits is 50
• More coming soon!