21930480

Names of 21930480

• Cardinal: 21930480 can be written as Twenty-one million, nine hundred thirty thousand, four hundred eighty.

Scientific notation

• Scientific notation: 2.193048 × 10⁷

Factors of 21930480

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 105

Divisors of 21930480

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 13 15 16 18 20 22 24 26 27 30 33 36 39 40 44 45 48 52 54 55 60 65 66 71 72 78 80 88 90 99 104 108 110 117 120 130 132 135 142 143 144 156 165 176 180 195 198 208 213 216 220 234 240 260 264 270 284 286 297 312 330 351 355 360 390 396 426 429 432 440 468 495 520 528 540 568 572 585 594 624 639 660 702 710 715 720 780 781 792 852 858 880 923 936 990 1040 1065 1080 1136 1144 1170 1188 1278 1287 1320 1404 1420 1430 1485 1560 1562 1584 1704 1716 1755 1846 1872 1917 1980 2130 2145 2160 2288 2340 2343 2376 2556 2574 2640 2769 2808 2840 2860 2970 3120 3124 3195 3408 3432 3510 3692 3834 3861 3905 3960 4260 4290 4615 4680 4686 4752 5112 5148 5538 5616 5680 5720 5940 6248 6390 6435 6864 7020 7029 7384 7668 7722 7810 7920 8307 8520 8580 9230 9360 9372 9585 10153 10224 10296 11076 11440 11715 11880 12496 12780 12870 13845 14040 14058 14768 15336 15444 15620 16614 17040 17160 18460 18744 19170 19305 20306 20592 21087 22152 23430 23760 24921 25560 25740 27690 28080 28116 30459 30672 30888 31240 33228 34320 35145 36920 37488 38340 38610 40612 41535 42174 44304 46860 49842 50765 51120 51480 55380 56232 60918 61776 62480 66456 70290 73840 76680 77220 81224 83070 84348 91377 93720 99684 101530 102960 105435 110760 112464 121836 124605 132912 140580 152295 153360 154440 162448 166140 168696 182754 187440 199368 203060 210870 221520 243672 249210 274131 281160 304590 308880 332280 337392 365508 398736 406120 421740 456885 487344 498420 548262 562320 609180 664560 731016 812240 843480 913770 996840 1096524 1218360 1370655 1462032 1686960 1827540 1993680 2193048 2436720 2741310 3655080 4386096 5482620 7310160 10965240 21930480
• Sum of all divisors σ(n): 89994240
• Sum of proper divisors (its aliquot sum) s(n): 68063760
• 21930480 is an abundant number, because the sum of its proper divisors (68063760) is greater than itself. Its abundance is 46133280

Bases of 21930480

• Binary: 1010011101010000111110000₂
• Hexadecimal: 0x14EA1F0
• Base-36: D21O0

Squares and roots of 21930480

• 21930480 squared (21930480²) is 480945953030400
• 21930480 cubed (21930480³) is 10547375604014126592000
• The square root of 21930480 is 4682.9990390775
• The cube root of 21930480 is 279.9084734863

Scales and comparisons

• 21,930,480 seconds is equal to 36 weeks, 1 day, 19 hours, 48 minutes.
• To count from 1 to 21,930,480 would take you about two weeks!

  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 21930480 cubic inches would be around 23.3 feet tall.

Recreational maths with 21930480

• 21930480 backwards is 08403912
• 21930480 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21930480's digits is 27
• More coming soon!