31478218968

Names of 31478218968

• Cardinal: 31478218968 can be written as Thirty-one billion, four hundred seventy-eight million, two hundred eighteen thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 3.1478218968 × 10¹⁰

Factors of 31478218968

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1163826

Divisors of 31478218968

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 21 23 24 28 42 46 49 56 69 84 92 98 138 147 161 168 184 196 276 294 322 392 483 552 588 644 966 1127 1176 1288 1932 2254 3381 3864 4508 6762 9016 13524 27048 1163791 2327582 3491373 4655164 6982746 8146537 9310328 13965492 16293074 24439611 26767193 27930984 32586148 48879222 53534386 57025759 65172296 80301579 97758444 107068772 114051518 160603158 171077277 187370351 195516888 214137544 228103036 321206316 342154554 374740702 456206072 562111053 642412632 684309108 749481404 1124222106 1311592457 1368618216 1498962808 2248444212 2623184914 3934777371 4496888424 5246369828 7869554742 10492739656 15739109484 31478218968
• Sum of all divisors σ(n): 95524047360
• Sum of proper divisors (its aliquot sum) s(n): 64045828392
• 31478218968 is an abundant number, because the sum of its proper divisors (64045828392) is greater than itself. Its abundance is 32567609424

Bases of 31478218968

• Binary: 11101010100001111111000000011011000₂
• Hexadecimal: 0x7543F80D8
• Base-36: EGLBH7C

Squares and roots of 31478218968

• 31478218968 squared (31478218968²) is 990878269397354985024
• 31478218968 cubed (31478218968³) is 31191083134722833618611832735232
• The square root of 31478218968 is 177421.0217758877
• The cube root of 31478218968 is 3157.4517112493

Scales and comparisons

• 31,478,218,968 seconds is equal to 1,000 years, 47 weeks, 2 days, 5 hours, 42 minutes, 48 seconds.
• To count from 1 to 31,478,218,968 would take you about two thousand and one 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 31478218968 cubic inches would be around 263.1 feet tall.

Recreational maths with 31478218968

• 31478218968 backwards is 86981287413
• The number of decimal digits it has is: 11
• The sum of 31478218968's digits is 57
• More coming soon!