68742872640

Names of 68742872640

• Cardinal: 68742872640 can be written as Sixty-eight billion, seven hundred forty-two million, eight hundred seventy-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 6.874287264 × 10¹⁰

Factors of 68742872640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 5254

Divisors of 68742872640

• Number of divisors d(n): 504
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 27 30 32 36 39 40 45 48 52 54 60 64 65 72 78 80 81 90 96 104 108 117 120 130 135 144 156 160 162 169 180 192 195 208 216 234 240 243 260 270 288 312 320 324 338 351 360 390 405 416 432 468 480 486 507 520 540 576 585 624 648 676 702 720 780 810 832 845 864 936 960 972 1014 1040 1053 1080 1170 1215 1248 1296 1352 1404 1440 1521 1560 1620 1690 1728 1755 1872 1944 2028 2080 2106 2160 2340 2430 2496 2535 2592 2704 2808 2880 3042 3120 3159 3240 3380 3510 3744 3888 4056 4160 4212 4320 4563 4680 4860 5070 5184 5231 5265 5408 5616 6084 6240 6318 6480 6760 7020 7488 7605 7776 8112 8424 8640 9126 9360 9720 10140 10462 10530 10816 11232 12168 12480 12636 12960 13520 13689 14040 15210 15552 15693 15795 16224 16848 18252 18720 19440 20280 20924 21060 22464 22815 24336 25272 25920 26155 27040 27378 28080 30420 31386 31590 32448 33696 36504 37440 38880 40560 41067 41848 42120 45630 47079 48672 50544 52310 54080 54756 56160 60840 62772 63180 67392 68003 68445 73008 77760 78465 81120 82134 83696 84240 91260 94158 97344 101088 104620 109512 112320 121680 125544 126360 136006 136890 141237 146016 156930 162240 164268 167392 168480 182520 188316 202176 204009 205335 209240 219024 235395 243360 251088 252720 272012 273780 282474 292032 313860 328536 334784 336960 340015 365040 376632 408018 410670 418480 423711 438048 470790 486720 502176 505440 544024 547560 564948 612027 627720 657072 680030 706185 730080 753264 816036 821340 836960 847422 876096 884039 941580 1004352 1010880 1020045 1088048 1095120 1129896 1224054 1255440 1271133 1314144 1360060 1412370 1460160 1506528 1632072 1642680 1673920 1694844 1768078 1836081 1883160 2040090 2118555 2176096 2190240 2259792 2448108 2510880 2542266 2628288 2652117 2720120 2824740 3013056 3060135 3264144 3285360 3389688 3536156 3672162 3766320 4080180 4237110 4352192 4380480 4420195 4519584 4896216 5021760 5084532 5304234 5440240 5508243 5649480 6120270 6355665 6528288 6570720 6779376 7072312 7344324 7532640 7956351 8160360 8474220 8840390 9039168 9180405 9792432 10169064 10608468 10880480 11016486 11298960 12240540 12711330 13056576 13141440 13260585 13558752 14144624 14688648 15065280 15912702 16320720 16524729 16948440 17680780 18360810 19584864 20338128 21216936 21760960 22032972 22597920 23869053 24481080 25422660 26521170 27117504 27541215 28289248 29377296 31825404 32641440 33049458 33896880 35361560 36721620 39169728 39781755 40676256 42433872 44065944 45195840 47738106 48962160 50845320 53042340 55082430 56578496 58754592 63650808 65282880 66098916 67793760 70723120 71607159 73443240 79563510 81352512 82623645 84867744 88131888 95476212 97924320 101690640 106084680 110164860 117509184 119345265 127301616 132197832 135587520 141446240 143214318 146886480 159127020 165247290 169735488 176263776 190952424 195848640 203381280 212169360 214821477 220329720 238690530 254603232 264395664 282892480 286428636 293772960 318254040 330494580 352527552 358035795 381904848 406762560 424338720 429642954 440659440 477381060 509206464 528791328 572857272 587545920 636508080 660989160 716071590 763809696 848677440 859285908 881318880 954762120 1057582656 1074107385 1145714544 1273016160 1321978320 1432143180 1527619392 1718571816 1762637760 1909524240 2148214770 2291429088 2546032320 2643956640 2864286360 3437143632 3819048480 4296429540 4582858176 5287913280 5728572720 6874287264 7638096960 8592859080 11457145440 13748574528 17185718160 22914290880 34371436320 68742872640
• Sum of all divisors σ(n): 265567655808
• Sum of proper divisors (its aliquot sum) s(n): 196824783168
• 68742872640 is an abundant number, because the sum of its proper divisors (196824783168) is greater than itself. Its abundance is 128081910528

Bases of 68742872640

• Binary: 1000000000001011001001111111001000000₂
• Hexadecimal: 0x100164FE40
• Base-36: VKVQC00

Squares and roots of 68742872640

• 68742872640 squared (68742872640²) is 4725582538799260569600
• 68742872640 cubed (68742872640³) is 324850118614485427862186655744000
• The square root of 68742872640 is 262188.6203480235
• The cube root of 68742872640 is 4096.4647821073

Scales and comparisons

• 68,742,872,640 seconds is equal to 2,185 years, 42 weeks, 1 day, 2 hours, 24 minutes.
• To count from 1 to 68,742,872,640 would take you about four thousand, three 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 68742872640 cubic inches would be around 341.4 feet tall.

Recreational maths with 68742872640

• 68742872640 backwards is 04627824786
• 68742872640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 68742872640's digits is 54
• More coming soon!