21448797440

Names of 21448797440

• Cardinal: 21448797440 can be written as Twenty-one billion, four hundred forty-eight million, seven hundred ninety-seven thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.144879744 × 10¹⁰

Factors of 21448797440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1512

Divisors of 21448797440

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 70 80 98 112 128 140 160 196 224 245 256 280 281 320 392 448 490 560 562 640 784 896 980 1120 1124 1217 1280 1405 1568 1792 1960 1967 2240 2248 2434 2810 3136 3920 3934 4480 4496 4868 5620 6085 6272 7840 7868 8519 8960 8992 9736 9835 11240 12170 12544 13769 15680 15736 17038 17984 19472 19670 22480 24340 27538 31360 31472 34076 35968 38944 39340 42595 44960 48680 55076 59633 62720 62944 68152 68845 71936 77888 78680 85190 89920 97360 110152 119266 125888 136304 137690 155776 157360 170380 179840 194720 220304 238532 251776 272608 275380 298165 311552 314720 340760 341977 359680 389440 440608 477064 503552 545216 550760 596330 629440 681520 683954 778880 881216 954128 1090432 1101520 1192660 1258880 1363040 1367908 1557760 1709885 1762432 1908256 2180864 2203040 2385320 2393839 2517760 2726080 2735816 3419770 3524864 3816512 4406080 4770640 4787678 5452160 5471632 6839540 7633024 8812160 9541280 9575356 10904320 10943264 11969195 13679080 15266048 16756873 17624320 19082560 19150712 21886528 23938390 27358160 33513746 38165120 38301424 43773056 47876780 54716320 67027492 76330240 76602848 83784365 87546112 95753560 109432640 134054984 153205696 167568730 191507120 218865280 268109968 306411392 335137460 383014240 437730560 536219936 612822784 670274920 766028480 1072439872 1340549840 1532056960 2144879744 2681099680 3064113920 4289759488 5362199360 10724398720 21448797440
• Sum of all divisors σ(n): 60026552712
• Sum of proper divisors (its aliquot sum) s(n): 38577755272
• 21448797440 is an abundant number, because the sum of its proper divisors (38577755272) is greater than itself. Its abundance is 17128957832

Bases of 21448797440

• Binary: 10011111110011100101010110100000000₂
• Hexadecimal: 0x4FE72AD00
• Base-36: 9UQ260W

Squares and roots of 21448797440

• 21448797440 squared (21448797440²) is 460050911622150553600
• 21448797440 cubed (21448797440³) is 9867538815470849041350262784000
• The square root of 21448797440 is 146454.0796290769
• The cube root of 21448797440 is 2778.4397434959

Scales and comparisons

• 21,448,797,440 seconds is equal to 682 years, 1 day, 23 hours, 17 minutes, 20 seconds.
• To count from 1 to 21,448,797,440 would take you about one thousand, three hundred sixty-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 21448797440 cubic inches would be around 231.5 feet tall.

Recreational maths with 21448797440

• 21448797440 backwards is 04479784412
• The number of decimal digits it has is: 11
• The sum of 21448797440's digits is 50
• More coming soon!