21009452760

Names of 21009452760

• Cardinal: 21009452760 can be written as Twenty-one billion, nine million, four hundred fifty-two thousand, seven hundred sixty.

Scientific notation

• Scientific notation: 2.100945276 × 10¹⁰

Factors of 21009452760

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1128

Divisors of 21009452760

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 79 81 90 108 120 135 158 162 180 216 237 270 316 324 360 395 405 474 540 632 648 711 790 810 948 1039 1080 1185 1422 1580 1620 1896 2078 2133 2370 2844 3117 3160 3240 3555 4156 4266 4740 5195 5688 6234 6241 6399 7110 8312 8532 9351 9480 10390 10665 12468 12482 12798 14220 15585 17064 18702 18723 20780 21330 24936 24964 25596 28053 28440 31170 31205 31995 37404 37446 41560 42660 46755 49928 51192 56106 56169 62340 62410 63990 74808 74892 82081 84159 85320 93510 93615 112212 112338 124680 124820 127980 140265 149784 164162 168318 168507 187020 187230 224424 224676 246243 249640 255960 280530 280845 328324 336636 337014 374040 374460 410405 420795 449352 492486 505521 561060 561690 656648 673272 674028 738729 748920 820810 841590 842535 984972 1011042 1122120 1123380 1231215 1348056 1477458 1641620 1683180 1685070 1969944 2022084 2216187 2246760 2462430 2527605 2954916 3283240 3366360 3370140 3693645 4044168 4432374 4924860 5055210 5909832 6484399 6648561 6740280 7387290 8864748 9849720 10110420 11080935 12968798 13297122 14774580 17729496 19453197 20220840 22161870 25937596 26594244 29549160 32421995 33242805 38906394 44323740 51875192 53188488 58359591 64843990 66485610 77812788 88647480 97265985 116719182 129687980 132971220 155625576 175078773 194531970 233438364 259375960 265942440 291797955 350157546 389063940 466876728 525236319 583595910 700315092 778127880 875393865 1050472638 1167191820 1400630184 1750787730 2100945276 2334383640 2626181595 3501575460 4201890552 5252363190 7003150920 10504726380 21009452760
• Sum of all divisors σ(n): 71589117600
• Sum of proper divisors (its aliquot sum) s(n): 50579664840
• 21009452760 is an abundant number, because the sum of its proper divisors (50579664840) is greater than itself. Its abundance is 29570212080

Bases of 21009452760

• Binary: 10011100100010000101100111011011000₂
• Hexadecimal: 0x4E442CED8
• Base-36: 9NGHHI0

Squares and roots of 21009452760

• 21009452760 squared (21009452760²) is 441397105274671617600
• 21009452760 cubed (21009452760³) is 9273511631668960174479984576000
• The square root of 21009452760 is 144946.3789130311
• The cube root of 21009452760 is 2759.3380737783

Scales and comparisons

• 21,009,452,760 seconds is equal to 668 years, 1 week, 5 days, 23 hours, 6 minutes.
• To count from 1 to 21,009,452,760 would take you about one thousand, three hundred thirty-six 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 21009452760 cubic inches would be around 229.9 feet tall.

Recreational maths with 21009452760

• 21009452760 backwards is 06725490012
• 21009452760 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21009452760's digits is 36
• More coming soon!