189421020720

Names of 189421020720

• Cardinal: 189421020720 can be written as One hundred eighty-nine billion, four hundred twenty-one million, twenty thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.8942102072 × 10¹¹

Factors of 189421020720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 71890

Divisors of 189421020720

• Number of divisors d(n): 200
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 81 90 108 120 135 144 162 180 216 240 270 324 360 405 409 432 540 648 720 810 818 1080 1227 1296 1620 1636 2045 2160 2454 3240 3272 3681 4090 4908 6135 6480 6544 7362 8180 9816 11043 12270 14724 16360 18405 19632 22086 24540 29448 32720 33129 36810 44172 49080 55215 58896 66258 71471 73620 88344 98160 110430 132516 142942 147240 165645 176688 214413 220860 265032 285884 294480 331290 357355 428826 441720 530064 571768 643239 662580 714710 857652 883440 1072065 1143536 1286478 1325160 1429420 1715304 1929717 2144130 2572956 2650320 2858840 3216195 3430608 3859434 4288260 5145912 5717680 5789151 6432390 7718868 8576520 9648585 10291824 11578302 12864780 15437736 17153040 19297170 23156604 25729560 28945755 29231639 30875472 38594340 46313208 51459120 57891510 58463278 77188680 87694917 92626416 115783020 116926556 146158195 154377360 175389834 231566040 233853112 263084751 292316390 350779668 438474585 463132080 467706224 526169502 584632780 701559336 789254253 876949170 1052339004 1169265560 1315423755 1403118672 1578508506 1753898340 2104678008 2338531120 2367762759 2630847510 3157017012 3507796680 3946271265 4209356016 4735525518 5261695020 6314034024 7015593360 7892542530 9471051036 10523390040 11838813795 12628068048 15785085060 18942102072 21046780080 23677627590 31570170120 37884204144 47355255180 63140340240 94710510360 189421020720
• Sum of all divisors σ(n): 659505021120
• Sum of proper divisors (its aliquot sum) s(n): 470084000400
• 189421020720 is an abundant number, because the sum of its proper divisors (470084000400) is greater than itself. Its abundance is 280662979680

Bases of 189421020720

• Binary: 10110000011010010111110110011000110000₂
• Hexadecimal: 0x2C1A5F6630
• Base-36: 2F0ODV00

Squares and roots of 189421020720

• 189421020720 squared (189421020720²) is 35880323090606669318400
• 189421020720 cubed (189421020720³) is 6796487423586100346330834677248000
• The square root of 189421020720 is 435225.2528518997
• The cube root of 189421020720 is 5743.0516772723

Scales and comparisons

• 189,421,020,720 seconds is equal to 6,023 years, 22 hours, 12 minutes.
• To count from 1 to 189,421,020,720 would take you about twelve thousand and forty-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 189421020720 cubic inches would be around 478.6 feet tall.

Recreational maths with 189421020720

• 189421020720 backwards is 027020124981
• 189421020720 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 189421020720's digits is 36
• More coming soon!