21349453440

Names of 21349453440

• Cardinal: 21349453440 can be written as Twenty-one billion, three hundred forty-nine million, four hundred fifty-three thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.134945344 × 10¹⁰

Factors of 21349453440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 26119

Divisors of 21349453440

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 61 64 70 80 84 96 105 112 120 122 128 140 160 168 183 192 210 224 240 244 280 305 320 336 366 384 420 427 448 480 488 560 610 640 672 732 840 854 896 915 960 976 1120 1220 1281 1344 1464 1680 1708 1830 1920 1952 2135 2240 2440 2562 2688 2928 3360 3416 3660 3904 4270 4480 4880 5124 5856 6405 6720 6832 7320 7808 8540 9760 10248 11712 12810 13440 13664 14640 17080 19520 20496 23424 25620 26041 27328 29280 34160 39040 40992 51240 52082 54656 58560 68320 78123 81984 102480 104164 117120 130205 136640 156246 163968 182287 204960 208328 260410 273280 312492 364574 390615 409920 416656 520820 546861 624984 729148 781230 819840 833312 911435 1041640 1093722 1249968 1458296 1562460 1588501 1666624 1822870 2083280 2187444 2499936 2734305 2916592 3124920 3177002 3333248 3645740 4166560 4374888 4765503 4999872 5468610 5833184 6249840 6354004 7291480 7942505 8333120 8749776 9531006 9999744 10937220 11119507 11666368 12499680 12708008 14582960 15885010 16666240 17499552 19062012 21874440 22239014 23332736 23827515 24999360 25416016 29165920 31770020 33358521 34999104 38124024 43748880 44478028 47655030 49998720 50832032 55597535 58331840 63540040 66717042 69998208 76248048 87497760 88956056 95310060 101664064 111195070 116663680 127080080 133434084 152496096 166792605 174995520 177912112 190620120 203328128 222390140 254160160 266868168 304992192 333585210 349991040 355824224 381240240 444780280 508320320 533736336 609984384 667170420 711648448 762480480 889560560 1016640640 1067472672 1334340840 1423296896 1524960960 1779121120 2134945344 2668681680 3049921920 3558242240 4269890688 5337363360 7116484480 10674726720 21349453440
• Sum of all divisors σ(n): 79051011840
• Sum of proper divisors (its aliquot sum) s(n): 57701558400
• 21349453440 is an abundant number, because the sum of its proper divisors (57701558400) is greater than itself. Its abundance is 36352104960

Bases of 21349453440

• Binary: 10011111000100001101100111010000000₂
• Hexadecimal: 0x4F886CE80
• Base-36: 9T2WVPC

Squares and roots of 21349453440

• 21349453440 squared (21349453440²) is 455799162186727833600
• 21349453440 cubed (21349453440³) is 9731062991096554469395267584000
• The square root of 21349453440 is 146114.5216602375
• The cube root of 21349453440 is 2774.1434876303

Scales and comparisons

• 21,349,453,440 seconds is equal to 678 years, 44 weeks, 3 hours, 44 minutes.
• To count from 1 to 21,349,453,440 would take you about one thousand, three hundred fifty-seven 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 21349453440 cubic inches would be around 231.2 feet tall.

Recreational maths with 21349453440

• 21349453440 backwards is 04435494312
• The number of decimal digits it has is: 11
• The sum of 21349453440's digits is 39
• More coming soon!