12721972897920

Names of 12721972897920

• Cardinal: 12721972897920 can be written as Twelve trillion, seven hundred twenty-one billion, nine hundred seventy-two million, eight hundred ninety-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.272197289792 × 10¹³

Factors of 12721972897920

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 92656

Divisors of 12721972897920

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 13 15 16 20 22 24 26 30 32 33 39 40 44 48 52 55 60 64 65 66 78 80 88 96 104 110 120 128 130 132 143 156 160 165 176 192 195 208 220 240 260 264 286 312 320 330 352 384 390 416 429 440 480 503 520 528 572 624 640 660 704 715 780 832 858 880 960 1006 1040 1056 1144 1248 1320 1408 1430 1509 1560 1664 1716 1760 1920 2012 2080 2112 2145 2288 2496 2515 2640 2860 3018 3120 3432 3520 4024 4160 4224 4290 4576 4992 5030 5280 5533 5720 6036 6240 6539 6864 7040 7545 8048 8320 8580 9152 10060 10560 11066 11440 12072 12480 13078 13728 15090 16096 16599 17160 18304 19617 20120 21120 22132 22880 24144 24960 26156 27456 27665 30180 32192 32695 33198 34320 39234 40240 44264 45760 48288 52312 54912 55330 60360 64384 65390 66396 68640 71929 78468 80480 82995 88528 91520 92119 96576 98085 104624 110660 120720 130780 132792 137280 143858 156936 160960 165990 177056 184238 193152 196170 209248 215787 221320 241440 261560 265584 274560 276357 287716 313872 321920 331980 354112 359645 368476 392340 418496 431574 442640 460595 482880 523120 531168 552714 575432 627744 663960 708224 719290 736952 784680 836992 863148 885280 921190 965760 1013309 1046240 1062336 1078935 1105428 1150864 1197547 1255488 1327920 1381785 1438580 1473904 1569360 1726296 1770560 1842380 2026618 2092480 2124672 2157870 2210856 2301728 2395094 2510976 2655840 2763570 2877160 2947808 3039927 3138720 3452592 3541120 3592641 3684760 4053236 4184960 4315740 4421712 4603456 4790188 5066545 5311680 5527140 5754320 5895616 5987735 6079854 6277440 6905184 7185282 7369520 8106472 8631480 8843424 9206912 9580376 10133090 10623360 11054280 11508640 11791232 11975470 12159708 12554880 13173017 13810368 14370564 14739040 15199635 16212944 17262960 17686848 17963205 19160752 20266180 22108560 23017280 23950940 24319416 26346034 27620736 28741128 29478080 30399270 32425888 34525920 35373696 35926410 38321504 39519051 40532360 44217120 46034560 46335857 47901880 48638832 52692068 57482256 58956160 60798540 64851776 65865085 69051840 71852820 76643008 79038102 81064720 88434240 92671714 95803760 97277664 105384136 114964512 121597080 129703552 131730170 138103680 139007571 143705640 153286016 158076204 162129440 176868480 185343428 191607520 194555328 197595255 210768272 229929024 231679285 243194160 263460340 278015142 287411280 316152408 324258880 370686856 383215040 389110656 395190510 421536544 459858048 463358570 486388320 509694427 526920680 556030284 574822560 602366141 632304816 648517760 695037855 741373712 766430080 790381020 843073088 926717140 972776640 1019388854 1053841360 1112060568 1149645120 1204732282 1264609632 1390075710 1482747424 1529083281 1580762040 1686146176 1807098423 1853434280 1945553280 2038777708 2107682720 2224121136 2299290240 2409464564 2529219264 2548472135 2780151420 2965494848 3011830705 3058166562 3161524080 3614196846 3706868560 4077555416 4215365440 4448242272 4818929128 5058438528 5096944270 5560302840 5930989696 6023661410 6116333124 6323048160 6626027551 7228393692 7413737120 7645416405 8155110832 8430730880 8896484544 9035492115 9637858256 10193888540 11120605680 12047322820 12232666248 12646096320 13252055102 14456787384 14827474240 15290832810 16310221664 17792969088 18070984230 19275716512 19878082653 20387777080 22241211360 24094645640 24465332496 25292192640 26504110204 28913574768 29654948480 30581665620 32620443328 33130137755 36141968460 38551433024 39756165306 40775554160 44482422720 48189291280 48930664992 53008220408 57827149536 61163331240 65240886656 66260275510 72283936920 77102866048 79512330612 81551108320 88964845440 96378582560 97861329984 99390413265 106016440816 115654299072 122326662480 132520551020 144567873840 159024661224 163102216640 192757165120 195722659968 198780826530 212032881632 231308598144 244653324960 265041102040 289135747680 318049322448 326204433280 385514330240 397561653060 424065763264 489306649920 530082204080 578271495360 636098644896 795123306120 848131526528 978613299840 1060164408160 1156542990720 1272197289792 1590246612240 2120328816320 2544394579584 3180493224480 4240657632640 6360986448960 12721972897920
• Sum of all divisors σ(n): 47735905996800
• Sum of proper divisors (its aliquot sum) s(n): 35013933098880
• 12721972897920 is an abundant number, because the sum of its proper divisors (35013933098880) is greater than itself. Its abundance is 22291960200960

Bases of 12721972897920

• Binary: 10111001001000010000101011001110100010000000₂
• Hexadecimal: 0xB9210ACE880
• Base-36: 4ICE66WLC

Squares and roots of 12721972897920

• 12721972897920 squared (12721972897920²) is 161848594415411002740326400
• 12721972897920 cubed (12721972897920³) is 2059033431719305042840203312254681088000
• The square root of 12721972897920 is 3566787.4758555493
• The cube root of 12721972897920 is 23344.5131967403

Scales and comparisons

• 12,721,972,897,920 seconds is equal to 404,519 years, 20 weeks, 16 hours, 32 minutes.
• To count from 1 to 12,721,972,897,920 would take you about one million, eleven thousand, two hundred ninety-eight 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 12721972897920 cubic inches would be around 1945.4 feet tall.

Recreational maths with 12721972897920

• 12721972897920 backwards is 02979827912721
• 12721972897920 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 12721972897920's digits is 66
• More coming soon!