21057052240

Names of 21057052240

• Cardinal: 21057052240 can be written as Twenty-one billion, fifty-seven million, fifty-two thousand, two hundred forty.

Scientific notation

• Scientific notation: 2.105705224 × 10¹⁰

Factors of 21057052240

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 3633

Divisors of 21057052240

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 35 37 40 41 49 56 70 74 80 82 98 112 140 148 164 185 196 205 245 259 280 287 296 328 370 392 410 490 518 560 574 592 656 740 784 820 980 1036 1148 1295 1435 1480 1517 1640 1813 1960 2009 2072 2296 2590 2870 2960 3034 3280 3541 3626 3920 4018 4144 4592 5180 5740 6068 7082 7252 7585 8036 9065 10045 10360 10619 11480 12136 14164 14504 15170 16072 17705 18130 20090 20720 21238 22960 24272 24787 28328 29008 30340 32144 35410 36260 40180 42476 49574 53095 56656 60680 70820 72520 74333 80360 84952 99148 106190 121360 123935 131017 141640 145040 145181 148666 160720 169904 173509 198296 212380 247870 262034 283280 290362 297332 347018 371665 396592 424760 495740 524068 580724 594664 655085 694036 725905 743330 849520 867545 917119 991480 1016267 1048136 1161448 1189328 1310170 1388072 1451810 1486660 1735090 1834238 1982960 2032534 2096272 2322896 2620340 2776144 2903620 2973320 3470180 3668476 4065068 4585595 5081335 5240680 5371697 5807240 5946640 6419833 6940360 7113869 7336952 8130136 9171190 10162670 10481360 10743394 11614480 12839666 13880720 14227738 14673904 16260272 18342380 20325340 21486788 25679332 26858485 28455476 32099165 35569345 36684760 37601879 40650680 42973576 51358664 53716970 56910952 64198330 71138690 73369520 75203758 81301360 85947152 102717328 107433940 113821904 128396660 142277380 150407516 188009395 214867880 256793320 263213153 284554760 300815032 376018790 429735760 513586640 526426306 569109520 601630064 752037580 1052852612 1316065765 1504075160 2105705224 2632131530 3008150320 4211410448 5264263060 10528526120 21057052240
• Sum of all divisors σ(n): 59933445264
• Sum of proper divisors (its aliquot sum) s(n): 38876393024
• 21057052240 is an abundant number, because the sum of its proper divisors (38876393024) is greater than itself. Its abundance is 17819340784

Bases of 21057052240

• Binary: 10011100111000110010001111001010000₂
• Hexadecimal: 0x4E7191E50
• Base-36: 9O8TPHS

Squares and roots of 21057052240

• 21057052240 squared (21057052240²) is 443399449038089017600
• 21057052240 cubed (21057052240³) is 9336685361582258193373479424000
• The square root of 21057052240 is 145110.4828742569
• The cube root of 21057052240 is 2761.4203744197

Scales and comparisons

• 21,057,052,240 seconds is equal to 669 years, 28 weeks, 3 days, 21 hours, 10 minutes, 40 seconds.
• To count from 1 to 21,057,052,240 would take you about one thousand, three hundred thirty-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 21057052240 cubic inches would be around 230.1 feet tall.

Recreational maths with 21057052240

• 21057052240 backwards is 04225075012
• 21057052240 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21057052240's digits is 28
• More coming soon!