21097583640

Names of 21097583640

• Cardinal: 21097583640 can be written as Twenty-one billion, ninety-seven million, five hundred eighty-three thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.109758364 × 10¹⁰

Factors of 21097583640

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1896

Divisors of 21097583640

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 28 30 35 36 40 42 43 45 56 60 63 70 72 84 86 90 105 113 120 126 129 140 168 172 180 210 215 226 252 258 280 301 315 339 344 360 387 420 430 452 504 516 565 602 630 645 678 774 791 840 860 903 904 1017 1032 1130 1204 1260 1290 1356 1505 1548 1582 1695 1720 1723 1806 1935 2034 2260 2373 2408 2520 2580 2709 2712 3010 3096 3164 3390 3446 3612 3870 3955 4068 4515 4520 4746 4859 5085 5160 5169 5418 6020 6328 6780 6892 7119 7224 7740 7910 8136 8615 9030 9492 9718 10170 10338 10836 11865 12040 12061 13545 13560 13784 14238 14577 15480 15507 15820 17230 18060 18984 19436 20340 20676 21672 23730 24122 24295 25845 27090 28476 29154 31014 31640 34013 34460 35595 36120 36183 38872 40680 41352 43731 47460 48244 48590 51690 54180 56952 58308 60305 62028 68026 68920 71190 72366 72885 74089 77535 87462 94920 96488 97180 102039 103380 108360 108549 116616 120610 124056 136052 142380 144732 145770 148178 155070 170065 174924 180915 194360 194699 204078 206760 217098 218655 222267 241220 272104 284760 289464 291540 296356 306117 310140 340130 349848 361830 370445 389398 408156 434196 437310 444534 482440 510195 518623 542745 583080 584097 592712 612234 620280 666801 680260 723660 740890 778796 816312 868392 874620 889068 973495 1020390 1037246 1085490 1111335 1168194 1224468 1333602 1360520 1362893 1447320 1481780 1530585 1555869 1557592 1749240 1752291 1778136 1946990 2040780 2074492 2170980 2222670 2336388 2448936 2593115 2667204 2725786 2920485 2963560 3061170 3111738 3334005 3504582 3893980 4081560 4088679 4148984 4341960 4445340 4667607 4672776 5186230 5334408 5451572 5840970 6122340 6223476 6668010 6814465 7009164 7779345 7787960 8177358 8372057 8761455 8890680 9335214 10372460 10903144 11681940 12244680 12266037 12446952 13336020 13628930 14018328 15558690 16354716 16744114 17522910 18670428 20443395 20744920 23338035 23363880 24532074 25116171 26672040 27257860 31117380 32709432 33488228 35045820 37340856 40886790 41860285 46676070 49064148 50232342 54515720 58604399 61330185 62234760 66976456 70091640 75348513 81773580 83720570 93352140 98128296 100464684 117208798 122660370 125580855 150697026 163547160 167441140 175813197 186704280 200929368 234417596 245320740 251161710 293021995 301394052 334882280 351626394 376742565 468835192 490641480 502323420 527439591 586043990 602788104 703252788 753485130 879065985 1004646840 1054879182 1172087980 1406505576 1506970260 1758131970 2109758364 2344175960 2637197955 3013940520 3516263940 4219516728 5274395910 7032527880 10548791820 21097583640
• Sum of all divisors σ(n): 80941386240
• Sum of proper divisors (its aliquot sum) s(n): 59843802600
• 21097583640 is an abundant number, because the sum of its proper divisors (59843802600) is greater than itself. Its abundance is 38746218960

Bases of 21097583640

• Binary: 10011101001100000111001010000011000₂
• Hexadecimal: 0x4E9839418
• Base-36: 9OWYFQ0

Squares and roots of 21097583640

• 21097583640 squared (21097583640²) is 445108035446795649600
• 21097583640 cubed (21097583640³) is 9390704006674855987424132544000
• The square root of 21097583640 is 145250.0727710661
• The cube root of 21097583640 is 2763.1910005139

Scales and comparisons

• 21,097,583,640 seconds is equal to 670 years, 43 weeks, 3 days, 23 hours, 54 minutes.
• To count from 1 to 21,097,583,640 would take you about one thousand, three hundred forty-one 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 21097583640 cubic inches would be around 230.3 feet tall.

Recreational maths with 21097583640

• 21097583640 backwards is 04638579012
• 21097583640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21097583640's digits is 45
• More coming soon!