21440747328

Names of 21440747328

• Cardinal: 21440747328 can be written as Twenty-one billion, four hundred forty million, seven hundred forty-seven thousand, three hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1440747328 × 10¹⁰

Factors of 21440747328

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 15973

Divisors of 21440747328

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 13 14 16 21 22 24 26 28 32 33 39 42 44 48 49 52 56 64 66 77 78 84 88 91 96 98 104 112 132 143 147 154 156 168 176 182 192 196 208 224 231 264 273 286 294 308 312 336 352 364 392 416 429 448 462 528 539 546 572 588 616 624 637 672 704 728 784 832 858 924 1001 1056 1078 1092 1144 1176 1232 1248 1274 1344 1456 1568 1617 1716 1848 1911 2002 2112 2156 2184 2288 2352 2464 2496 2548 2912 3003 3136 3234 3432 3696 3822 4004 4312 4368 4576 4704 4928 5096 5824 6006 6468 6864 7007 7392 7644 8008 8624 8736 9152 9408 10192 12012 12936 13728 14014 14784 15288 15937 16016 17248 17472 20384 21021 24024 25872 27456 28028 30576 31874 32032 34496 40768 42042 47811 48048 51744 56056 61152 63748 64064 84084 95622 96096 103488 111559 112112 122304 127496 168168 175307 191244 192192 207181 223118 224224 254992 334677 336336 350614 382488 414362 446236 448448 509984 525921 621543 669354 672672 701228 764976 780913 828724 892472 1019968 1051842 1227149 1243086 1338708 1345344 1402456 1450267 1529952 1561826 1657448 1784944 2103684 2278991 2342739 2454298 2486172 2677416 2804912 2900534 3059904 3123652 3314896 3569888 3681447 4207368 4350801 4557982 4685478 4908596 4972344 5354832 5609824 5801068 6247304 6629792 6836973 7139776 7362894 8414736 8590043 8701602 9115964 9370956 9817192 9944688 10151869 10709664 11219648 11602136 12494608 13259584 13673946 14725788 15952937 16829472 17180086 17403204 18231928 18741912 19634384 19889376 20303738 21419328 23204272 24989216 25770129 27347892 29451576 30455607 31905874 33658944 34360172 34806408 36463856 37483824 39268768 39778752 40607476 46408544 47858811 49978432 51540258 54695784 58903152 60911214 63811748 68720344 69612816 72927712 74967648 78537536 81214952 92817088 95717622 103080516 109391568 111670559 117806304 121822428 127623496 137440688 139225632 145855424 149935296 162429904 191435244 206161032 218783136 223341118 235612608 243644856 255246992 274881376 278451264 324859808 335011677 382870488 412322064 437566272 446682236 487289712 510493984 549762752 649719616 670023354 765740976 824644128 893364472 974579424 1020987968 1340046708 1531481952 1649288256 1786728944 1949158848 2680093416 3062963904 3573457888 5360186832 7146915776 10720373664 21440747328
• Sum of all divisors σ(n): 77532122304
• Sum of proper divisors (its aliquot sum) s(n): 56091374976
• 21440747328 is an abundant number, because the sum of its proper divisors (56091374976) is greater than itself. Its abundance is 34650627648

Bases of 21440747328

• Binary: 10011111101111101111101011101000000₂
• Hexadecimal: 0x4FDF7D740
• Base-36: 9UL9MIO

Squares and roots of 21440747328

• 21440747328 squared (21440747328²) is 459705645983139139584
• 21440747328 cubed (21440747328³) is 9856432600779504440087867031552
• The square root of 21440747328 is 146426.5936501973
• The cube root of 21440747328 is 2778.0921008525

Scales and comparisons

• 21,440,747,328 seconds is equal to 681 years, 38 weeks, 6 days, 19 hours, 8 minutes, 48 seconds.
• To count from 1 to 21,440,747,328 would take you about one thousand, three hundred sixty-three 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 21440747328 cubic inches would be around 231.5 feet tall.

Recreational maths with 21440747328

• 21440747328 backwards is 82374704412
• 21440747328 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21440747328's digits is 42
• More coming soon!