21436627968

Names of 21436627968

• Cardinal: 21436627968 can be written as Twenty-one billion, four hundred thirty-six million, six hundred twenty-seven thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1436627968 × 10¹⁰

Factors of 21436627968

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 440

Divisors of 21436627968

• Number of divisors d(n): 528
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 31 32 36 42 48 54 56 62 63 64 72 81 84 93 96 108 112 124 126 128 144 162 168 186 189 192 216 217 224 243 248 252 256 279 288 324 336 372 378 384 397 432 434 448 486 496 504 512 558 567 576 648 651 672 744 756 768 794 837 864 868 896 972 992 1008 1024 1116 1134 1152 1191 1296 1302 1344 1488 1512 1536 1588 1674 1701 1728 1736 1792 1944 1953 1984 2016 2232 2268 2304 2382 2511 2592 2604 2688 2779 2976 3024 3072 3176 3348 3402 3456 3472 3573 3584 3888 3906 3968 4032 4464 4536 4608 4764 5022 5184 5208 5376 5558 5859 5952 6048 6352 6696 6804 6912 6944 7146 7168 7533 7776 7812 7936 8064 8337 8928 9072 9216 9528 10044 10368 10416 10719 10752 11116 11718 11904 12096 12307 12704 13392 13608 13824 13888 14292 15066 15552 15624 15872 16128 16674 17577 17856 18144 19056 20088 20736 20832 21438 21504 22232 23436 23808 24192 24614 25011 25408 26784 27216 27648 27776 28584 30132 31104 31248 31744 32157 32256 33348 35154 35712 36288 36921 38112 40176 41472 41664 42876 44464 46872 47616 48384 49228 50022 50816 52731 53568 54432 55552 57168 60264 62208 62496 64314 64512 66696 70308 71424 72576 73842 75033 76224 80352 82944 83328 85752 86149 88928 93744 95232 96471 96768 98456 100044 101632 105462 107136 108864 110763 111104 114336 120528 124416 124992 128628 133392 140616 142848 145152 147684 150066 152448 160704 166656 171504 172298 177856 187488 192942 193536 196912 200088 203264 210924 214272 217728 221526 222208 225099 228672 241056 248832 249984 257256 258447 266784 281232 285696 290304 295368 300132 304896 321408 332289 333312 343008 344596 355712 374976 385884 393824 400176 406528 421848 428544 435456 443052 450198 457344 482112 499968 514512 516894 533568 562464 580608 590736 600264 609792 642816 664578 666624 675297 686016 689192 711424 749952 771768 775341 787648 800352 843696 857088 870912 886104 900396 914688 964224 996867 999936 1029024 1033788 1067136 1124928 1181472 1200528 1219584 1285632 1329156 1350594 1372032 1378384 1422848 1499904 1543536 1550682 1575296 1600704 1687392 1741824 1772208 1800792 1829376 1928448 1993734 1999872 2058048 2067576 2134272 2249856 2326023 2362944 2401056 2571264 2658312 2701188 2744064 2756768 2845696 2990601 2999808 3087072 3101364 3150592 3201408 3374784 3544416 3601584 3658752 3856896 3987468 4116096 4135152 4268544 4499712 4652046 4725888 4802112 5316624 5402376 5488128 5513536 5981202 5999616 6174144 6202728 6301184 6402816 6749568 6978069 7088832 7203168 7713792 7974936 8232192 8270304 8537088 8999424 9304092 9451776 9604224 10633248 10804752 10976256 11027072 11962404 12348288 12405456 12602368 12805632 13499136 13956138 14177664 14406336 15949872 16464384 16540608 17998848 18608184 18903552 19208448 20934207 21266496 21609504 22054144 23924808 24696576 24810912 25611264 26998272 27912276 28355328 28812672 31899744 32928768 33081216 37216368 37807104 38416896 41868414 42532992 43219008 44108288 47849616 49393152 49621824 53996544 55824552 56710656 57625344 63799488 66162432 74432736 76833792 83736828 85065984 86438016 88216576 95699232 98786304 99243648 111649104 113421312 115250688 127598976 132324864 148865472 167473656 170131968 172876032 191398464 198487296 223298208 230501376 255197952 264649728 297730944 334947312 340263936 345752064 382796928 396974592 446596416 510395904 595461888 669894624 691504128 765593856 793949184 893192832 1020791808 1190923776 1339789248 1531187712 1786385664 2381847552 2679578496 3062375424 3572771328 5359156992 7145542656 10718313984 21436627968
• Sum of all divisors σ(n): 75917563904
• Sum of proper divisors (its aliquot sum) s(n): 54480935936
• 21436627968 is an abundant number, because the sum of its proper divisors (54480935936) is greater than itself. Its abundance is 33044307968

Bases of 21436627968

• Binary: 10011111101101110001111110000000000₂
• Hexadecimal: 0x4FDB8FC00
• Base-36: 9UITC00

Squares and roots of 21436627968

• 21436627968 squared (21436627968²) is 459529018638439809024
• 21436627968 cubed (21436627968³) is 9850752613052372090008457183232
• The square root of 21436627968 is 146412.5266771939
• The cube root of 21436627968 is 2777.9141733719

Scales and comparisons

• 21,436,627,968 seconds is equal to 681 years, 32 weeks, 1 day, 2 hours, 52 minutes, 48 seconds.
• To count from 1 to 21,436,627,968 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 21436627968 cubic inches would be around 231.5 feet tall.

Recreational maths with 21436627968

• 21436627968 backwards is 86972663412
• 21436627968 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21436627968's digits is 54
• More coming soon!