21527494128

Names of 21527494128

• Cardinal: 21527494128 can be written as Twenty-one billion, five hundred twenty-seven million, four hundred ninety-four thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1527494128 × 10¹⁰

Factors of 21527494128

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2315

Divisors of 21527494128

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 17 18 21 24 28 34 36 42 48 51 56 63 68 72 84 102 112 119 126 136 144 153 168 204 238 252 272 306 336 357 408 476 504 612 714 816 919 952 1008 1071 1224 1367 1428 1838 1904 2142 2448 2734 2757 2856 3676 4101 4284 5468 5514 5712 6433 7352 8202 8271 8568 9569 10936 11028 12303 12866 14704 15623 16404 16542 17136 19138 19299 21872 22056 23239 24606 25732 28707 31246 32808 33084 38276 38598 44112 46478 46869 49212 51464 57414 57897 62492 65616 66168 69717 76552 77196 86121 92956 93738 98424 102928 109361 114828 115794 124984 132336 139434 140607 153104 154392 162673 172242 185912 187476 196848 209151 218722 229656 231588 249968 278868 281214 308784 325346 328083 344484 371824 374952 418302 437444 459312 463176 488019 557736 562428 650692 656166 688968 749904 836604 874888 926352 976038 984249 1115472 1124856 1256273 1301384 1312332 1377936 1464057 1673208 1749776 1952076 1968498 2249712 2512546 2602768 2624664 2928114 3346416 3768819 3904152 3936996 5025092 5249328 5856228 7537638 7808304 7873992 8793911 10050184 11306457 11712456 15075276 15747984 17587822 20100368 21356641 22612914 23424912 26381733 30150552 35175644 42713282 45225828 52763466 60301104 64069923 70351288 79145199 85426564 90451656 105526932 128139846 140702576 149496487 158290398 170853128 180903312 192209769 211053864 256279692 298992974 316580796 341706256 384419538 422107728 448489461 512559384 597985948 633161592 768839076 896978922 1025118768 1195971896 1266323184 1345468383 1537678152 1793957844 2391943792 2690936766 3075356304 3587915688 5381873532 7175831376 10763747064 21527494128
• Sum of all divisors σ(n): 73036753920
• Sum of proper divisors (its aliquot sum) s(n): 51509259792
• 21527494128 is an abundant number, because the sum of its proper divisors (51509259792) is greater than itself. Its abundance is 29981765664

Bases of 21527494128

• Binary: 10100000011001000110111110111110000₂
• Hexadecimal: 0x503237DF0
• Base-36: 9W0WWS0

Squares and roots of 21527494128

• 21527494128 squared (21527494128²) is 463433003431074480384
• 21527494128 cubed (21527494128³) is 9976551260083859729197211185152
• The square root of 21527494128 is 146722.5072304859
• The cube root of 21527494128 is 2781.8336731955

Scales and comparisons

• 21,527,494,128 seconds is equal to 684 years, 26 weeks, 2 days, 19 hours, 28 minutes, 48 seconds.
• To count from 1 to 21,527,494,128 would take you about one thousand, three hundred sixty-nine 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 21527494128 cubic inches would be around 231.8 feet tall.

Recreational maths with 21527494128

• 21527494128 backwards is 82149472512
• The number of decimal digits it has is: 11
• The sum of 21527494128's digits is 45
• More coming soon!