31386405672

Names of 31386405672

• Cardinal: 31386405672 can be written as Thirty-one billion, three hundred eighty-six million, four hundred five thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 3.1386405672 × 10¹⁰

Factors of 31386405672

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 360

Divisors of 31386405672

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 19 24 36 38 57 67 72 76 114 134 152 171 201 228 268 269 342 361 402 456 536 538 603 684 722 804 807 1076 1083 1206 1273 1368 1444 1608 1614 2152 2166 2412 2421 2546 2888 3228 3249 3819 4332 4489 4824 4842 5092 5111 6456 6498 7638 8664 8978 9684 10184 10222 11457 12996 13467 15276 15333 17956 18023 19368 20444 22914 24187 25992 26934 30552 30666 35912 36046 40401 40888 45828 45999 48374 53868 54069 61332 72092 72561 80802 85291 91656 91998 96748 97109 107736 108138 122664 144184 145122 161604 162207 170582 183996 193496 194218 216276 217683 255873 290244 291327 323208 324414 341164 342437 367992 388436 432552 435366 511746 580488 582654 648828 682328 684874 767619 776872 870732 873981 1023492 1027311 1165308 1207541 1297656 1369748 1535238 1620529 1741464 1747962 2046984 2054622 2330616 2415082 2739496 3070476 3081933 3241058 3495924 3622623 4109244 4830164 4861587 6140952 6163866 6482116 6506303 6991848 7245246 8218488 9660328 9723174 10867869 12327732 12964232 13012606 14490492 14584761 19446348 19518909 21735738 22943279 24655464 26025212 28980984 29169522 38892696 39037818 43471476 45886558 52050424 58339044 58556727 68829837 78075636 86942952 91773116 116678088 117113454 137659674 156151272 183546232 206489511 234226908 275319348 412979022 435922301 468453816 550638696 825958044 871844602 1307766903 1651916088 1743689204 2615533806 3487378408 3923300709 5231067612 7846601418 10462135224 15693202836 31386405672
• Sum of all divisors σ(n): 91411825050
• Sum of proper divisors (its aliquot sum) s(n): 60025419378
• 31386405672 is an abundant number, because the sum of its proper divisors (60025419378) is greater than itself. Its abundance is 28639013706

Bases of 31386405672

• Binary: 11101001110110001101000101100101000₂
• Hexadecimal: 0x74EC68B28
• Base-36: EF2NLM0

Squares and roots of 31386405672

• 31386405672 squared (31386405672²) is 985106461007353771584
• 31386405672 cubed (31386405672³) is 30918951015285055250154650024448
• The square root of 31386405672 is 177162.0886984571
• The cube root of 31386405672 is 3154.3789161057

Scales and comparisons

• 31,386,405,672 seconds is equal to 997 years, 51 weeks, 3 days, 14 hours, 1 minute, 12 seconds.
• To count from 1 to 31,386,405,672 would take you about one thousand, nine hundred ninety-five 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 31386405672 cubic inches would be around 262.9 feet tall.

Recreational maths with 31386405672

• 31386405672 backwards is 27650468313
• The number of decimal digits it has is: 11
• The sum of 31386405672's digits is 45
• More coming soon!