21223553440

Names of 21223553440

• Cardinal: 21223553440 can be written as Twenty-one billion, two hundred twenty-three million, five hundred fifty-three thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.122355344 × 10¹⁰

Factors of 21223553440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 691

Divisors of 21223553440

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 8 10 16 17 20 32 34 40 68 80 85 97 136 160 170 194 257 272 313 340 388 485 514 544 626 680 776 970 1028 1252 1285 1360 1552 1565 1649 1940 2056 2504 2570 2720 3104 3130 3298 3880 4112 4369 5008 5140 5321 6260 6596 7760 8224 8245 8738 10016 10280 10642 12520 13192 15520 16490 17476 20560 21284 21845 24929 25040 26384 26605 30361 32980 34952 41120 42568 43690 49858 50080 52768 53210 60722 65960 69904 80441 85136 87380 99716 106420 121444 124645 131920 139808 151805 160882 170272 174760 199432 212840 242888 249290 263840 303610 321764 349520 398864 402205 423793 425680 485776 498580 516137 607220 643528 699040 797728 804410 847586 851360 971552 997160 1032274 1214440 1287056 1367497 1608820 1695172 1994320 2064548 2118965 2428880 2574112 2580685 2734994 3217640 3390344 3988640 4129096 4237930 4857760 5161370 5469988 6435280 6780688 6837485 7802777 8258192 8475860 10322740 10939976 12870560 13561376 13674970 15605554 16516384 16951720 20645480 21879952 27349940 31211108 33903440 39013885 41290960 43759904 54699880 62422216 67806880 78027770 82581920 109399760 124844432 132647209 156055540 218799520 249688864 265294418 312111080 530588836 624222160 663236045 1061177672 1248444320 1326472090 2122355344 2652944180 4244710688 5305888360 10611776720 21223553440
• Sum of all divisors σ(n): 54018153504
• Sum of proper divisors (its aliquot sum) s(n): 32794600064
• 21223553440 is an abundant number, because the sum of its proper divisors (32794600064) is greater than itself. Its abundance is 11571046624

Bases of 21223553440

• Binary: 10011110001000001011011100110100000₂
• Hexadecimal: 0x4F105B9A0
• Base-36: 9QZYEN4

Squares and roots of 21223553440

• 21223553440 squared (21223553440²) is 450439220620535833600
• 21223553440 cubed (21223553440³) is 9559920870311892225844547584000
• The square root of 21223553440 is 145683.0581776755
• The cube root of 21223553440 is 2768.6795932887

Scales and comparisons

• 21,223,553,440 seconds is equal to 674 years, 43 weeks, 5 days, 23 hours, 30 minutes, 40 seconds.
• To count from 1 to 21,223,553,440 would take you about one thousand, three hundred forty-nine 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 21223553440 cubic inches would be around 230.7 feet tall.

Recreational maths with 21223553440

• 21223553440 backwards is 04435532212
• The number of decimal digits it has is: 11
• The sum of 21223553440's digits is 31
• More coming soon!