1991393727400

Names of 1991393727400

• Cardinal: 1991393727400 can be written as One trillion, nine hundred ninety-one billion, three hundred ninety-three million, seven hundred twenty-seven thousand, four hundred.

Scientific notation

• Scientific notation: 1.9913937274 × 10¹²

Factors of 1991393727400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 35245

Divisors of 1991393727400

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 20 22 25 28 35 40 44 50 55 56 70 77 88 100 110 121 140 154 175 200 220 242 275 280 308 337 350 385 440 484 550 605 616 674 700 770 847 968 1100 1210 1348 1400 1540 1685 1694 1925 2200 2359 2420 2696 3025 3080 3370 3388 3707 3850 4235 4718 4840 6050 6740 6776 7414 7700 8425 8470 9436 11795 12100 13480 14828 15400 16850 16940 18535 18872 21175 23590 24200 25949 29656 33700 33880 34883 37070 40777 42350 47180 51898 58975 67400 69766 74140 81554 84700 92675 94360 103796 117950 129745 139532 148280 163108 169400 174415 185350 203885 207592 235900 244181 259490 279064 285439 326216 348830 370700 383713 407770 471800 488362 518980 570878 648725 697660 741400 767426 815540 872075 976724 1019425 1037960 1141756 1220905 1297450 1395320 1427195 1534852 1631080 1744150 1918565 1953448 2038850 2283512 2441810 2594900 2685991 2854390 3069704 3488300 3837130 4077700 4220843 4883620 5189800 5371982 5708780 6104525 6976600 7135975 7674260 8155400 8441686 9592825 9767240 10743964 11417560 11755571 12209050 13429955 14271950 15348520 16883372 19185650 21104215 21487928 23511142 24418100 26859910 28543900 29545901 33766744 38371300 42208430 47022284 48836200 53719820 57087800 58777855 59091802 67149775 76742600 82288997 84416860 94044568 105521075 107439640 117555710 118183604 129311281 134299550 147729505 164577994 168833720 211042150 235111420 236367208 258622562 268599100 293889275 295459010 329155988 411444985 422084300 470222840 517245124 537198200 587778550 590918020 646556405 658311976 738647525 822889970 844168600 905178967 1034490248 1175557100 1181836040 1293112810 1422424091 1477295050 1645779940 1810357934 2057224925 2351114200 2586225620 2844848182 2954590100 3232782025 3291559880 3620715868 4114449850 4525894835 5172451240 5689696364 5909180200 6465564050 7112120455 7241431736 8228899700 9051789670 9956968637 11379392728 12931128100 14224240910 16457799400 18103579340 19913937274 22629474175 25862256200 28448481820 35560602275 36207158680 39827874548 45258948350 49784843185 56896963640 71121204550 79655749096 90517896700 99569686370 142242409100 181035793400 199139372740 248924215925 284484818200 398278745480 497848431850 995696863700 1991393727400
• Sum of all divisors σ(n): 5833612249920
• Sum of proper divisors (its aliquot sum) s(n): 3842218522520
• 1991393727400 is an abundant number, because the sum of its proper divisors (3842218522520) is greater than itself. Its abundance is 1850824795120

Bases of 1991393727400

• Binary: 11100111110101000010100001101001110101000₂
• Hexadecimal: 0x1CFA850D3A8
• Base-36: PEU0EQ3S

Squares and roots of 1991393727400

• 1991393727400 squared (1991393727400²) is 3965648977528065510760000
• 1991393727400 cubed (1991393727400³) is 7897168498919613215583741206824000000
• The square root of 1991393727400 is 1411167.5050822281
• The cube root of 1991393727400 is 12581.1124746331

Scales and comparisons

• 1,991,393,727,400 seconds is equal to 63,320 years, 8 weeks, 2 days, 12 hours, 16 minutes, 40 seconds.
• To count from 1 to 1,991,393,727,400 would take you about one hundred fifty-eight thousand, three hundred 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 1991393727400 cubic inches would be around 1048.4 feet tall.

Recreational maths with 1991393727400

• 1991393727400 backwards is 0047273931991
• 1991393727400 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 1991393727400's digits is 55
• More coming soon!