38421231387

Names of 38421231387

• Cardinal: 38421231387 can be written as Thirty-eight billion, four hundred twenty-one million, two hundred thirty-one thousand, three hundred eighty-seven.

Scientific notation

• Scientific notation: 3.8421231387 × 10¹⁰

Factors of 38421231387

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 439

Divisors of 38421231387

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 7 11 19 21 33 43 49 57 77 127 129 133 147 209 229 231 301 381 399 473 539 627 687 817 889 903 931 1397 1419 1463 1603 1617 2107 2413 2451 2519 2667 2793 3311 4191 4351 4389 4809 5461 5719 6223 6321 7239 7557 8987 9779 9847 9933 10241 11221 13053 16383 16891 17157 17633 18669 23177 26543 26961 29083 29337 29541 30457 30723 33663 38227 40033 47861 50673 52899 60071 62909 68453 68929 69531 79629 87249 91371 103759 108317 114681 118237 120099 123431 143583 180213 185801 187093 188727 203581 205359 206787 213199 267589 311277 319913 324951 335027 354711 370293 420497 440363 482503 552577 557403 561279 610743 639597 726313 758219 802767 959739 1005081 1141349 1250569 1261491 1300607 1309651 1321089 1425067 1447509 1657731 2058023 2178939 2239391 2274657 2345189 2943479 3424047 3751707 3868039 3901821 3928953 4275201 5084191 5307533 6078347 6174069 6718173 7035567 7989443 8753983 8830437 9167557 11604117 13756259 14406161 15252573 15675737 15922599 18235041 23760811 23968329 26261949 27076273 27502671 41268777 42548429 43218483 47027211 55926101 61277881 71282433 81228819 96293813 100843127 127645287 166325677 167778303 183833643 261368921 288881439 297839003 302529381 498977031 674056691 784106763 893517009 1164279739 1829582447 2022170073 3492839217 5488747341 12807077129 38421231387
• Sum of all divisors σ(n): 70882099200
• Sum of proper divisors (its aliquot sum) s(n): 32460867813
• 38421231387 is a deficient number, because the sum of its proper divisors (32460867813) is less than itself. Its deficiency is 5960363574

Bases of 38421231387

• Binary: 100011110010000101010111011100011011₂
• Hexadecimal: 0x8F215771B
• Base-36: HNF0BVF

Squares and roots of 38421231387

• 38421231387 squared (38421231387²) is 1476191021293393943769
• 38421231387 cubed (38421231387³) is 56717076800525332728093215877603
• The square root of 38421231387 is 196013.3449206965
• The cube root of 38421231387 is 3374.3523259997

Scales and comparisons

• 38,421,231,387 seconds is equal to 1,221 years, 35 weeks, 1 day, 4 hours, 16 minutes, 27 seconds.
• To count from 1 to 38,421,231,387 would take you about two thousand, four hundred forty-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 38421231387 cubic inches would be around 281.2 feet tall.

Recreational maths with 38421231387

• 38421231387 backwards is 78313212483
• The number of decimal digits it has is: 11
• The sum of 38421231387's digits is 42
• More coming soon!