9109138688

Names of 9109138688

• Cardinal: 9109138688 can be written as Nine billion, one hundred nine million, one hundred thirty-eight thousand, six hundred eighty-eight.

Scientific notation

• Scientific notation: 9.109138688 × 10⁹

Factors of 9109138688

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2134

Divisors of 9109138688

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 8 13 16 19 26 32 38 52 64 71 76 104 128 142 152 208 247 256 284 304 416 494 568 608 832 923 988 1136 1216 1349 1664 1846 1976 2029 2272 2432 2698 3328 3692 3952 4058 4544 4864 5396 7384 7904 8116 9088 10792 14768 15808 16232 17537 18176 21584 26377 29536 31616 32464 35074 38551 43168 52754 59072 63232 64928 70148 77102 86336 105508 118144 129856 140296 144059 154204 172672 211016 236288 259712 280592 288118 308408 345344 422032 501163 519424 561184 576236 616816 844064 1002326 1122368 1152472 1233632 1688128 1872767 2004652 2244736 2304944 2467264 2737121 3376256 3745534 4009304 4489472 4609888 4934528 5474242 6752512 7491068 8018608 9219776 9869056 10948484 14982136 16037216 18439552 21896968 29964272 32074432 35582573 36879104 43793936 59928544 64148864 71165146 87587872 119857088 128297728 142330292 175175744 239714176 284660584 350351488 479428352 569321168 700702976 1138642336 2277284672 4554569344 9109138688
• Sum of all divisors σ(n): 20912572800
• Sum of proper divisors (its aliquot sum) s(n): 11803434112
• 9109138688 is an abundant number, because the sum of its proper divisors (11803434112) is greater than itself. Its abundance is 2694295424

Bases of 9109138688

• Binary: 1000011110111100100110110100000000₂
• Hexadecimal: 0x21EF26D00
• Base-36: 46NCGE8

Squares and roots of 9109138688

• 9109138688 squared (9109138688²) is 82976407637218361344
• 9109138688 cubed (9109138688³) is 755843604999444444022594076672
• The square root of 9109138688 is 95441.8078621733
• The cube root of 9109138688 is 2088.4581233237

Scales and comparisons

• 9,109,138,688 seconds is equal to 289 years, 33 weeks, 2 days, 20 hours, 18 minutes, 8 seconds.
• To count from 1 to 9,109,138,688 would take you about five hundred seventy-nine 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 9109138688 cubic inches would be around 174 feet tall.

Recreational maths with 9109138688

• 9109138688 backwards is 8868319019
• The number of decimal digits it has is: 10
• The sum of 9109138688's digits is 53
• More coming soon!