31400768

Names of 31400768

• Cardinal: 31400768 can be written as Thirty-one million, four hundred thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 3.1400768 × 10⁷

Factors of 31400768

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 76

Divisors of 31400768

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 4 7 8 14 16 17 19 28 31 32 34 38 49 56 62 64 68 76 98 112 119 124 133 136 152 196 217 224 238 248 266 272 304 323 392 434 448 476 496 527 532 544 589 608 646 784 833 868 931 952 992 1054 1064 1088 1178 1216 1292 1519 1568 1666 1736 1862 1904 1984 2108 2128 2261 2356 2584 3038 3136 3332 3472 3689 3724 3808 4123 4216 4256 4522 4712 5168 6076 6664 6944 7378 7448 7616 8246 8432 8512 9044 9424 10013 10336 12152 13328 13888 14756 14896 15827 16492 16864 18088 18848 20026 20672 24304 25823 26656 28861 29512 29792 31654 32984 33728 36176 37696 40052 48608 51646 53312 57722 59024 59584 63308 65968 70091 72352 80104 97216 103292 115444 118048 126616 131936 140182 144704 160208 206584 230888 236096 253232 263872 280364 320416 413168 461776 490637 506464 560728 640832 826336 923552 981274 1012928 1121456 1652672 1847104 1962548 2242912 3925096 4485824 7850192 15700384 31400768
• Sum of all divisors σ(n): 83393280
• Sum of proper divisors (its aliquot sum) s(n): 51992512
• 31400768 is an abundant number, because the sum of its proper divisors (51992512) is greater than itself. Its abundance is 20591744

Bases of 31400768

• Binary: 1110111110010001101000000₂
• Hexadecimal: 0x1DF2340
• Base-36: IP0ZK

Squares and roots of 31400768

• 31400768 squared (31400768²) is 986008230989824
• 31400768 cubed (31400768³) is 30961415707401873784832
• The square root of 31400768 is 5603.6388177683
• The cube root of 31400768 is 315.4859987607

Scales and comparisons

• 31,400,768 seconds is equal to 51 weeks, 6 days, 10 hours, 26 minutes, 8 seconds.
• To count from 1 to 31,400,768 would take you about twenty-five weeks!

  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 31400768 cubic inches would be around 26.3 feet tall.

Recreational maths with 31400768

• 31400768 backwards is 86700413
• The number of decimal digits it has is: 8
• The sum of 31400768's digits is 29
• More coming soon!