21284379648

Names of 21284379648

• Cardinal: 21284379648 can be written as Twenty-one billion, two hundred eighty-four million, three hundred seventy-nine thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 2.1284379648 × 10¹⁰

Factors of 21284379648

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 290

Divisors of 21284379648

• Number of divisors d(n): 396
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 37 42 48 56 63 64 72 74 84 96 111 112 126 128 144 148 168 192 222 224 241 252 256 259 288 296 333 336 384 444 448 482 504 512 518 576 592 666 672 723 768 777 888 896 964 1008 1024 1036 1152 1184 1332 1344 1369 1446 1536 1554 1687 1776 1792 1928 2016 2072 2169 2304 2331 2368 2664 2688 2738 2892 3072 3108 3374 3552 3584 3856 4032 4107 4144 4338 4608 4662 4736 5061 5328 5376 5476 5784 6216 6748 7104 7168 7712 8064 8214 8288 8676 8917 9216 9324 9472 9583 10122 10656 10752 10952 11568 12321 12432 13496 14208 15183 15424 16128 16428 16576 17352 17834 18648 18944 19166 20244 21312 21504 21904 23136 24642 24864 26751 26992 28416 28749 30366 30848 32256 32856 33152 34704 35668 37296 37888 38332 40488 42624 43808 46272 49284 49728 53502 53984 56832 57498 60732 61696 62419 64512 65712 66304 69408 71336 74592 76664 80253 80976 85248 86247 87616 92544 98568 99456 107004 107968 113664 114996 121464 123392 124838 131424 132608 138816 142672 149184 153328 160506 161952 170496 172494 175232 185088 187257 197136 198912 214008 215936 229992 242928 246784 249676 262848 265216 277632 285344 298368 306656 321012 323904 329929 340992 344988 350464 370176 374514 394272 397824 428016 431872 459984 485856 499352 525696 555264 561771 570688 596736 613312 642024 647808 659858 689976 700928 740352 749028 788544 795648 856032 863744 919968 971712 989787 998704 1051392 1110528 1123542 1141376 1193472 1226624 1284048 1295616 1319716 1379952 1401856 1498056 1577088 1712064 1727488 1839936 1943424 1979574 1997408 2102784 2221056 2247084 2282752 2309503 2386944 2453248 2568096 2591232 2639432 2759904 2969361 2996112 3154176 3424128 3679872 3886848 3959148 3994816 4205568 4494168 4565504 4619006 4906496 5136192 5182464 5278864 5519808 5938722 5992224 6308352 6848256 6928509 7359744 7773696 7918296 7989632 8988336 9131008 9238012 9812992 10272384 10557728 11039616 11877444 11984448 12616704 13696512 13857018 14719488 15547392 15836592 15979264 17976672 18476024 20544768 20785527 21115456 22079232 23754888 23968896 27393024 27714036 29438976 31673184 31958528 35953344 36952048 41089536 41571054 42230912 44158464 47509776 47937792 55428072 63346368 63917056 71906688 73904096 82179072 83142108 84461824 88316928 95019552 95875584 110856144 126692736 143813376 147808192 166284216 168923648 190039104 191751168 221712288 253385472 287626752 295616384 332568432 337847296 380078208 443424576 506770944 575253504 591232768 665136864 760156416 886849152 1013541888 1182465536 1330273728 1520312832 1773698304 2364931072 2660547456 3040625664 3547396608 5321094912 7094793216 10642189824 21284379648
• Sum of all divisors σ(n): 72487086672
• Sum of proper divisors (its aliquot sum) s(n): 51202707024
• 21284379648 is an abundant number, because the sum of its proper divisors (51202707024) is greater than itself. Its abundance is 29918327376

Bases of 21284379648

• Binary: 10011110100101001011101110000000000₂
• Hexadecimal: 0x4F4A5DC00
• Base-36: 9S064G0

Squares and roots of 21284379648

• 21284379648 squared (21284379648²) is 453024817000196603904
• 21284379648 cubed (21284379648³) is 9642352194997909008133014945792
• The square root of 21284379648 is 145891.6709342929
• The cube root of 21284379648 is 2771.3220608071

Scales and comparisons

• 21,284,379,648 seconds is equal to 676 years, 40 weeks, 2 days, 23 hours, 40 minutes, 48 seconds.
• To count from 1 to 21,284,379,648 would take you about one thousand, three hundred fifty-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 21284379648 cubic inches would be around 230.9 feet tall.

Recreational maths with 21284379648

• 21284379648 backwards is 84697348212
• The number of decimal digits it has is: 11
• The sum of 21284379648's digits is 54
• More coming soon!