21061223424

Names of 21061223424

• Cardinal: 21061223424 can be written as Twenty-one billion, sixty-one million, two hundred twenty-three thousand, four hundred twenty-four.

Scientific notation

• Scientific notation: 2.1061223424 × 10¹⁰

Factors of 21061223424

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 8227

Divisors of 21061223424

• Number of divisors d(n): 220
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 31 32 36 48 54 62 64 72 81 93 96 108 124 128 144 162 186 192 216 248 256 279 288 324 372 384 432 496 512 558 576 648 744 768 837 864 992 1024 1116 1152 1296 1488 1536 1674 1728 1984 2232 2304 2511 2592 2976 3072 3348 3456 3968 4464 4608 5022 5184 5952 6696 6912 7936 8191 8928 9216 10044 10368 11904 13392 13824 15872 16382 17856 20088 20736 23808 24573 26784 27648 31744 32764 35712 40176 41472 47616 49146 53568 65528 71424 73719 80352 82944 95232 98292 107136 131056 142848 147438 160704 196584 214272 221157 253921 262112 285696 294876 321408 393168 428544 442314 507842 524224 589752 642816 663471 761763 786336 857088 884628 1015684 1048448 1179504 1285632 1326942 1523526 1572672 1769256 2031368 2096896 2285289 2359008 2571264 2653884 3047052 3145344 3538512 4062736 4193792 4570578 4718016 5307768 6094104 6290688 6855867 7077024 8125472 8387584 9141156 9436032 10615536 12188208 12581376 13711734 14154048 16250944 18282312 18872064 20567601 21231072 24376416 25162752 27423468 28308096 32501888 36564624 37744128 41135202 42462144 48752832 54846936 56616192 65003776 73129248 75488256 82270404 84924288 97505664 109693872 113232384 130007552 146258496 164540808 169848576 195011328 219387744 226464768 260015104 292516992 329081616 339697152 390022656 438775488 585033984 658163232 679394304 780045312 877550976 1170067968 1316326464 1755101952 2340135936 2632652928 3510203904 5265305856 7020407808 10530611712 21061223424
• Sum of all divisors σ(n): 64929660928
• Sum of proper divisors (its aliquot sum) s(n): 43868437504
• 21061223424 is an abundant number, because the sum of its proper divisors (43868437504) is greater than itself. Its abundance is 22807214080

Bases of 21061223424

• Binary: 10011100111010110001100010000000000₂
• Hexadecimal: 0x4E758C400
• Base-36: 9OBB400

Squares and roots of 21061223424

• 21061223424 squared (21061223424²) is 443575132115646283776
• 21061223424 cubed (21061223424³) is 9342234962817944188761642369024
• The square root of 21061223424 is 145124.8546045783
• The cube root of 21061223424 is 2761.6026986417

Scales and comparisons

• 21,061,223,424 seconds is equal to 669 years, 35 weeks, 3 days, 3 hours, 50 minutes, 24 seconds.
• To count from 1 to 21,061,223,424 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 21061223424 cubic inches would be around 230.1 feet tall.

Recreational maths with 21061223424

• 21061223424 backwards is 42432216012
• 21061223424 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21061223424's digits is 27
• More coming soon!