121381047021

Names of 121381047021

• Cardinal: 121381047021 can be written as One hundred twenty-one billion, three hundred eighty-one million, forty-seven thousand and twenty-one.

Scientific notation

• Scientific notation: 1.21381047021 × 10¹¹

Factors of 121381047021

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2051

Divisors of 121381047021

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 13 19 23 39 43 57 69 89 129 247 267 299 437 559 741 817 897 989 1157 1311 1677 1691 1861 2047 2451 2967 3471 3827 5073 5583 5681 6141 10621 11481 12857 17043 18791 21983 24193 26611 31863 35359 38571 38893 42803 49751 56373 65949 72579 72713 79833 80023 88021 106077 116679 128409 149253 165629 218139 240069 244283 264063 459667 496887 505609 556439 732849 813257 945269 1040299 1144273 1379001 1516827 1520437 1669317 1672399 1840529 2153177 2439771 2835807 3120897 3146951 3432819 3809467 4561311 5017197 5521587 6459531 7122047 9440853 10572341 11428401 19765681 21366141 21741187 23926877 31717023 34970051 40910363 49523071 59297043 65223561 71780631 72379873 92586611 104910153 122731089 135318893 148569213 163807081 217139619 277759833 405956679 454610663 491421243 940938349 1363831989 1759145609 2129492053 2822815047 3112334539 5277436827 6388476159 9337003617 40460349007 121381047021
• Sum of all divisors σ(n): 198200217600
• Sum of proper divisors (its aliquot sum) s(n): 76819170579
• 121381047021 is a deficient number, because the sum of its proper divisors (76819170579) is less than itself. Its deficiency is 44561876442

Bases of 121381047021

• Binary: 1110001000010110111111100101011101101₂
• Hexadecimal: 0x1C42DFCAED
• Base-36: 1JRF53AL

Squares and roots of 121381047021

• 121381047021 squared (121381047021²) is 14733358575914212974441
• 121381047021 cubed (121381047021³) is 1788350490080296683112831292190261
• The square root of 121381047021 is 348397.8286686069
• The cube root of 121381047021 is 4951.2739913151

Scales and comparisons

• 121,381,047,021 seconds is equal to 3,859 years, 28 weeks, 1 day, 5 hours, 30 minutes, 21 seconds.
• To count from 1 to 121,381,047,021 would take you about seven thousand, seven hundred nineteen 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 121381047021 cubic inches would be around 412.6 feet tall.

Recreational maths with 121381047021

• 121381047021 backwards is 120740183121
• The number of decimal digits it has is: 12
• The sum of 121381047021's digits is 30
• More coming soon!