1989201809920

Names of 1989201809920

• Cardinal: 1989201809920 can be written as One trillion, nine hundred eighty-nine billion, two hundred one million, eight hundred nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.98920180992 × 10¹²

Factors of 1989201809920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 315

Divisors of 1989201809920

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 31 32 40 52 62 64 65 80 104 113 124 128 130 151 155 160 208 226 248 256 260 302 310 320 403 416 452 496 512 520 565 604 620 640 755 806 832 904 992 1040 1130 1208 1240 1280 1469 1510 1612 1664 1808 1963 1984 2015 2080 2260 2416 2480 2560 2938 3020 3224 3328 3503 3616 3926 3968 4030 4160 4520 4681 4832 4960 5876 6040 6448 6656 7006 7232 7345 7852 7936 8060 8320 9040 9362 9664 9815 9920 11752 12080 12769 12896 14012 14464 14690 15704 15872 16120 16640 17063 17515 18080 18724 19328 19630 19840 23405 23504 24160 25538 25792 28024 28928 29380 31408 32240 33280 34126 35030 36160 37448 38656 39260 39680 45539 46810 47008 48320 51076 51584 56048 57856 58760 60853 62816 63845 64480 68252 70060 72320 74896 77312 78520 79360 85315 91078 93620 94016 96640 102152 103168 112096 117520 121706 125632 127690 128960 136504 140120 144640 149792 157040 165997 170630 182156 187240 188032 193280 204304 206336 221819 224192 227695 235040 243412 251264 255380 257920 273008 280240 289280 299584 304265 314080 331994 341260 364312 374480 376064 386560 395839 408608 443638 448384 455390 470080 486824 502528 510760 515840 528953 546016 560480 599168 608530 628160 663988 682520 728624 748960 752128 791678 817216 829985 887276 896768 910780 940160 973648 1005056 1021520 1031680 1057906 1092032 1109095 1120960 1198336 1217060 1256320 1327976 1365040 1457248 1497920 1583356 1634432 1659970 1774552 1793536 1821560 1880320 1928119 1947296 1979195 2043040 2115812 2184064 2218190 2241920 2396672 2434120 2512640 2644765 2655952 2730080 2914496 2995840 3166712 3268864 3319940 3549104 3643120 3760640 3856238 3894592 3958390 4086080 4231624 4368128 4436380 4483840 4868240 5025280 5145907 5289530 5311904 5460160 5828992 5991680 6333424 6537728 6639880 6876389 7098208 7286240 7712476 7789184 7916780 8172160 8463248 8736256 8872760 8967680 9640595 9736480 10291814 10579060 10623808 10920320 11657984 11983360 12666848 13279760 13752778 14196416 14572480 15424952 15578368 15833560 16344320 16926496 17745520 19281190 19472960 20583628 21158120 21247616 21840640 23315968 25065547 25333696 25729535 26559520 27505556 28392832 29144960 30849904 31156736 31667120 32688640 33852992 34381945 35491040 38562380 38945920 41167256 42316240 42495232 43681280 50131094 50667392 51459070 53119040 55011112 56785664 58289920 59771689 61699808 63334240 67705984 68763890 70982080 77124760 77891840 82334512 84632480 84990464 100262188 101334784 102918140 106238080 110022224 113571328 116579840 119543378 123399616 125327735 126668480 135411968 137527780 141964160 154249520 155783680 164669024 169264960 200524376 202669568 205836280 212476160 220044448 239086756 246799232 250655470 253336960 270823936 275055560 283928320 298858445 308499040 329338048 338529920 401048752 411672560 424952320 440088896 478173512 493598464 501310940 506673920 550111120 567856640 597716890 616998080 658676096 677059840 777031957 802097504 823345120 880177792 956347024 987196928 1002621880 1013347840 1100222240 1195433780 1233996160 1317352192 1354119680 1554063914 1604195008 1646690240 1760355584 1912694048 2005243760 2200444480 2390867560 2467992320 2634704384 3108127828 3208390016 3293380480 3520711168 3825388096 3885159785 4010487520 4400888960 4781735120 4935984640 6216255656 6416780032 6586760960 7650776192 7770319570 8020975040 8801777920 9563470240 12432511312 12833560064 13173521920 15301552384 15540639140 16041950080 17603555840 19126940480 24865022624 30603104768 31081278280 32083900160 38253880960 49730045248 62162556560 64167800320 76507761920 99460090496 124325113120 153015523840 198920180992 248650226240 397840361984 497300452480 994600904960 1989201809920
• Sum of all divisors σ(n): 5384749353984
• Sum of proper divisors (its aliquot sum) s(n): 3395547544064
• 1989201809920 is an abundant number, because the sum of its proper divisors (3395547544064) is greater than itself. Its abundance is 1406345734144

Bases of 1989201809920

• Binary: 11100111100100101101010101101001000000000₂
• Hexadecimal: 0x1CF25AAD200
• Base-36: PDTREBR4

Squares and roots of 1989201809920

• 1989201809920 squared (1989201809920²) is 3956923840589003810406400
• 1989201809920 cubed (1989201809920³) is 7871120065415243938510187410751488000
• The square root of 1989201809920 is 1410390.6586190933
• The cube root of 1989201809920 is 12576.4947900383

Scales and comparisons

• 1,989,201,809,920 seconds is equal to 63,250 years, 24 weeks, 1 day, 2 hours, 18 minutes, 40 seconds.
• To count from 1 to 1,989,201,809,920 would take you about one hundred fifty-eight thousand, one hundred twenty-six 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 1989201809920 cubic inches would be around 1048 feet tall.

Recreational maths with 1989201809920

• 1989201809920 backwards is 0299081029891
• The number of decimal digits it has is: 13
• The sum of 1989201809920's digits is 58
• More coming soon!