21131907709440

Names of 21131907709440

• Cardinal: 21131907709440 can be written as Twenty-one trillion, one hundred thirty-one billion, nine hundred seven million, seven hundred nine thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.113190770944 × 10¹³

Factors of 21131907709440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 8069115

Divisors of 21131907709440

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 31 32 33 40 44 48 55 60 62 64 66 80 88 93 96 110 120 124 128 132 155 160 165 176 186 192 220 240 248 256 264 310 320 330 341 352 372 384 440 465 480 496 512 528 620 640 660 682 704 744 768 880 930 960 992 1023 1056 1240 1280 1320 1364 1408 1488 1536 1705 1760 1860 1920 1984 2046 2112 2480 2560 2640 2728 2816 2976 3410 3520 3720 3840 3968 4092 4224 4960 5115 5280 5456 5632 5952 6820 7040 7440 7680 7936 8184 8448 9920 10230 10560 10912 11904 13640 14080 14880 15872 16368 16896 19840 20460 21120 21824 23808 27280 28160 29760 32736 39680 40920 42240 43648 47616 54560 59520 65472 79360 81840 84480 87296 109120 119040 130944 163680 174592 218240 238080 261888 327360 436480 523776 654720 872960 1309440 2618880 8069063 16138126 24207189 32276252 40345315 48414378 64552504 80690630 88759693 96828756 121035945 129105008 161381260 177519386 193657512 242071890 250140953 258210016 266279079 322762520 355038772 387315024 443798465 484143780 500281906 516420032 532558158 645525040 710077544 750422859 774630048 887596930 968287560 1000563812 1032840064 1065116316 1250704765 1291050080 1331395395 1420155088 1500845718 1549260096 1775193860 1936575120 2001127624 2065680128 2130232632 2501409530 2582100160 2662790790 2751550483 2840310176 3001691436 3098520192 3550387720 3752114295 3873150240 4002255248 4131360256 4260465264 5002819060 5164200320 5325581580 5503100966 5680620352 6003382872 6197040384 7100775440 7504228590 7746300480 8004510496 8254651449 8520930528 10005638120 10328400640 10651163160 11006201932 11361240704 12006765744 12394080768 13757752415 14201550880 15008457180 15492600960 16009020992 16509302898 17041861056 20011276240 20656801280 21302326320 22012403864 22722481408 24013531488 27515504830 28403101760 30016914360 30985201920 32018041984 33018605796 34083722112 40022552480 41273257245 42604652640 44024807728 45444962816 48027062976 55031009660 56806203520 60033828720 61970403840 64036083968 66037211592 68167444224 80045104960 82546514490 85209305280 88049615456 96054125952 110062019320 113612407040 120067657440 128072167936 132074423184 136334888448 160090209920 165093028980 170418610560 176099230912 192108251904 220124038640 227224814080 240135314880 264148846368 320180419840 330186057960 340837221120 352198461824 384216503808 440248077280 480270629760 528297692736 640360839680 660372115920 681674442240 704396923648 880496154560 960541259520 1056595385472 1320744231840 1408793847296 1760992309120 1921082519040 2113190770944 2641488463680 3521984618240 4226381541888 5282976927360 7043969236480 10565953854720 21131907709440
• Sum of all divisors σ(n): 76074877181952
• Sum of proper divisors (its aliquot sum) s(n): 54942969472512
• 21131907709440 is an abundant number, because the sum of its proper divisors (54942969472512) is greater than itself. Its abundance is 33811061763072

Bases of 21131907709440

• Binary: 100110011100000100111110110100011101000000000₂
• Hexadecimal: 0x133827DA3A00
• Base-36: 7HNV48NPC

Squares and roots of 21131907709440

• 21131907709440 squared (21131907709440²) is 446557523440289707465113600
• 21131907709440 cubed (21131907709440³) is 9436612372296291580689116403685392384000
• The square root of 21131907709440 is 4596945.4760133929
• The cube root of 21131907709440 is 27646.8868500899

Scales and comparisons

• 21,131,907,709,440 seconds is equal to 671,929 years, 15 weeks, 4 days, 3 hours, 44 minutes.
• To count from 1 to 21,131,907,709,440 would take you about one million, six hundred seventy-nine thousand, eight hundred twenty-three 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 21131907709440 cubic inches would be around 2303.9 feet tall.

Recreational maths with 21131907709440

• 21131907709440 backwards is 04490770913112
• 21131907709440 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21131907709440's digits is 48
• More coming soon!