21299437440

Names of 21299437440

• Cardinal: 21299437440 can be written as Twenty-one billion, two hundred ninety-nine million, four hundred thirty-seven thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.129943744 × 10¹⁰

Factors of 21299437440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 2799

Divisors of 21299437440

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 29 30 32 36 40 45 47 48 58 60 64 72 80 87 90 94 96 116 120 128 141 144 145 160 174 180 188 192 232 235 240 261 282 288 290 320 348 360 376 384 423 435 464 470 480 522 564 576 580 640 696 705 720 752 846 870 928 940 960 1044 1128 1152 1160 1305 1363 1392 1410 1440 1504 1692 1740 1856 1880 1920 2088 2115 2256 2320 2610 2713 2726 2784 2820 2880 3008 3384 3480 3712 3760 4089 4176 4230 4512 4640 5220 5426 5452 5568 5640 5760 6016 6768 6815 6960 7520 8139 8178 8352 8460 9024 9280 10440 10852 10904 11136 11280 12267 13536 13565 13630 13920 15040 16278 16356 16704 16920 18048 18560 20445 20880 21704 21808 22560 24417 24534 27072 27130 27260 27840 30080 32556 32712 33408 33840 40695 40890 41760 43408 43616 45120 48834 49068 54144 54260 54520 55680 61335 65112 65424 67680 78677 81390 81780 83520 86816 87232 90240 97668 98136 108520 109040 122085 122670 127511 130224 130848 135360 157354 162780 163560 167040 173632 174464 195336 196272 217040 218080 236031 244170 245340 255022 260448 261696 270720 314708 325560 327120 347264 382533 390672 392544 393385 434080 436160 472062 488340 490680 510044 520896 523392 629416 637555 651120 654240 708093 765066 781344 785088 786770 868160 872320 944124 976680 981360 1020088 1041792 1147599 1180155 1258832 1275110 1302240 1308480 1416186 1530132 1562688 1570176 1573540 1736320 1888248 1912665 1953360 1962720 2040176 2295198 2360310 2517664 2550220 2604480 2616960 2832372 3060264 3125376 3147080 3540465 3697819 3776496 3825330 3906720 3925440 4080352 4590396 4720620 5035328 5100440 5208960 5664744 5737995 6120528 6294160 7080930 7395638 7552992 7650660 7813440 7850880 8160704 9180792 9441240 10070656 10200880 11093457 11329488 11475990 12241056 12588320 14161860 14791276 15105984 15301320 15626880 16321408 18361584 18489095 18882480 20401760 22186914 22658976 22951980 24482112 25176640 28323720 29582552 30211968 30602640 33280371 36723168 36978190 37764960 40803520 44373828 45317952 45903960 48964224 50353280 55467285 56647440 59165104 61205280 66560742 73446336 73956380 75529920 81607040 88747656 90635904 91807920 110934570 113294880 118330208 122410560 133121484 146892672 147912760 151059840 166401855 177495312 183615840 221869140 226589760 236660416 244821120 266242968 295825520 332803710 354990624 367231680 443738280 453179520 473320832 532485936 591651040 665607420 709981248 734463360 887476560 1064971872 1183302080 1331214840 1419962496 1774953120 2129943744 2366604160 2662429680 3549906240 4259887488 5324859360 7099812480 10649718720 21299437440
• Sum of all divisors σ(n): 77733302400
• Sum of proper divisors (its aliquot sum) s(n): 56433864960
• 21299437440 is an abundant number, because the sum of its proper divisors (56433864960) is greater than itself. Its abundance is 35134427520

Bases of 21299437440

• Binary: 10011110101100010111001111110000000₂
• Hexadecimal: 0x4F58B9F80
• Base-36: 9S94V40

Squares and roots of 21299437440

• 21299437440 squared (21299437440²) is 453666035260473753600
• 21299437440 cubed (21299437440³) is 9662831336683294819565174784000
• The square root of 21299437440 is 145943.2678817355
• The cube root of 21299437440 is 2771.9754375239

Scales and comparisons

• 21,299,437,440 seconds is equal to 677 years, 13 weeks, 2 days, 6 hours, 24 minutes.
• To count from 1 to 21,299,437,440 would take you about one thousand, three hundred fifty-four 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 21299437440 cubic inches would be around 231 feet tall.

Recreational maths with 21299437440

• 21299437440 backwards is 04473499212
• 21299437440 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21299437440's digits is 45
• More coming soon!