21445389152

Names of 21445389152

• Cardinal: 21445389152 can be written as Twenty-one billion, four hundred forty-five million, three hundred eighty-nine thousand, one hundred fifty-two.

Scientific notation

• Scientific notation: 2.1445389152 × 10¹⁰

Factors of 21445389152

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 130

Divisors of 21445389152

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 8 11 16 22 23 32 41 44 46 53 82 88 92 106 164 176 184 212 253 328 352 368 424 451 506 529 583 656 736 848 902 943 1012 1058 1166 1219 1312 1696 1804 1886 2024 2116 2173 2332 2438 2809 3608 3772 4048 4232 4346 4664 4876 5618 5819 7216 7544 8096 8464 8692 9328 9752 10373 11236 11638 13409 14432 15088 16928 17384 18656 19504 20746 21689 22472 23276 23903 26818 28037 30176 30899 34768 39008 41492 43378 44944 46552 47806 49979 53636 56074 61798 64607 69536 82984 86756 89888 93104 95612 99958 107272 112148 115169 123596 129214 165968 173512 186208 191224 199916 214544 224296 230338 238579 247192 258428 308407 331936 347024 382448 399832 429088 448592 460676 477158 494384 516856 549769 616814 694048 710677 764896 799664 897184 921352 954316 988768 1033712 1099538 1149517 1233628 1266859 1421354 1485961 1599328 1842704 1908632 2067424 2199076 2299034 2467256 2533718 2648887 2842708 2971922 3685408 3817264 4398152 4598068 4934512 5067436 5297774 5685416 5943844 7634528 8796304 9196136 9869024 10134872 10595548 11370832 11887688 12644687 16345571 17592608 18392272 20269744 21191096 22741664 23775376 25289374 29137757 32691142 36784544 40539488 42382192 47550752 50578748 58275514 60924401 65382284 84764384 101157496 116551028 121848802 130764568 202314992 233102056 243697604 261529136 404629984 466204112 487395208 523058272 670168411 932408224 974790416 1340336822 1949580832 2680673644 5361347288 10722694576 21445389152
• Sum of all divisors σ(n): 50271004728
• Sum of proper divisors (its aliquot sum) s(n): 28825615576
• 21445389152 is an abundant number, because the sum of its proper divisors (28825615576) is greater than itself. Its abundance is 7380226424

Bases of 21445389152

• Binary: 10011111110001111101010101101100000₂
• Hexadecimal: 0x4FE3EAB60
• Base-36: 9UO1468

Squares and roots of 21445389152

• 21445389152 squared (21445389152²) is 459904715880719279104
• 21445389152 cubed (21445389152³) is 9862835604902019354054181879808
• The square root of 21445389152 is 146442.4431372271
• The cube root of 21445389152 is 2778.2925678091

Scales and comparisons

• 21,445,389,152 seconds is equal to 681 years, 46 weeks, 4 days, 12 hours, 32 minutes, 32 seconds.
• To count from 1 to 21,445,389,152 would take you about one thousand, three hundred sixty-three 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 21445389152 cubic inches would be around 231.5 feet tall.

Recreational maths with 21445389152

• 21445389152 backwards is 25198354412
• 21445389152 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21445389152's digits is 44
• More coming soon!