21546768672

Names of 21546768672

• Cardinal: 21546768672 can be written as Twenty-one billion, five hundred forty-six million, seven hundred sixty-eight thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 2.1546768672 × 10¹⁰

Factors of 21546768672

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1653

Divisors of 21546768672

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 13 16 18 22 24 26 32 33 36 39 44 48 52 66 72 78 88 96 99 104 117 132 143 144 156 176 198 208 234 264 286 288 312 352 396 416 429 443 468 528 572 624 792 858 886 936 1056 1144 1181 1248 1287 1329 1584 1716 1772 1872 2288 2362 2574 2658 3168 3432 3543 3544 3744 3987 4576 4724 4873 5148 5316 5759 6864 7086 7088 7974 9448 9746 10296 10629 10632 11518 12991 13728 14172 14176 14619 15353 15948 17277 18896 19492 20592 21258 21264 23036 25982 28344 29238 30706 31896 34554 37792 38973 38984 41184 42516 42528 43857 46059 46072 51831 51964 56688 58476 61412 63349 63792 69108 77946 77968 85032 87714 92118 92144 103662 103928 113376 116919 116952 122824 126698 127584 138177 138216 155892 155936 168883 170064 175428 184236 184288 190047 207324 207856 233838 233904 245648 253396 276354 276432 311784 337766 340128 350856 368472 380094 414648 415712 467676 467808 491296 506649 506792 523183 552708 552864 570141 623568 675532 701712 736944 760188 829296 935352 1013298 1013584 1046366 1105416 1140282 1247136 1351064 1403424 1473888 1519947 1520376 1569549 1658592 1870704 2026596 2027168 2092732 2210832 2280564 2702128 3039894 3040752 3139098 3741408 4053192 4185464 4421664 4561128 4708647 5404256 5755013 6079788 6081504 6278196 6801379 8106384 8370928 9122256 9417294 11510026 12159576 12556392 13602758 16212768 16741856 17265039 18244512 18834588 20404137 23020052 24319152 25112784 27205516 34530078 37669176 40808274 46040104 48638304 50225568 51795117 54411032 61212411 69060156 74815169 75338352 81616548 92080208 103590234 108822064 122424822 138120312 149630338 150676704 163233096 184160416 207180468 217644128 224445507 244849644 276240624 299260676 326466192 414360936 448891014 489699288 552481248 598521352 652932384 673336521 828721872 897782028 979398576 1197042704 1346673042 1657443744 1795564056 1958797152 2394085408 2693346084 3591128112 5386692168 7182256224 10773384336 21546768672
• Sum of all divisors σ(n): 72209382336
• Sum of proper divisors (its aliquot sum) s(n): 50662613664
• 21546768672 is an abundant number, because the sum of its proper divisors (50662613664) is greater than itself. Its abundance is 29115844992

Bases of 21546768672

• Binary: 10100000100010010011001100100100000₂
• Hexadecimal: 0x504499920
• Base-36: 9WCE140

Squares and roots of 21546768672

• 21546768672 squared (21546768672²) is 464263240204680643584
• 21546768672 cubed (21546768672³) is 10003372639603423758940529000448
• The square root of 21546768672 is 146788.1761995835
• The cube root of 21546768672 is 2782.6636595809

Scales and comparisons

• 21,546,768,672 seconds is equal to 685 years, 6 weeks, 1 day, 21 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,546,768,672 would take you about one thousand, three hundred seventy 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 21546768672 cubic inches would be around 231.9 feet tall.

Recreational maths with 21546768672

• 21546768672 backwards is 27686764512
• The number of decimal digits it has is: 11
• The sum of 21546768672's digits is 54
• More coming soon!