138644398080

Names of 138644398080

• Cardinal: 138644398080 can be written as One hundred thirty-eight billion, six hundred forty-four million, three hundred ninety-eight thousand and eighty.

Scientific notation

• Scientific notation: 1.3864439808 × 10¹¹

Factors of 138644398080

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 376107

Divisors of 138644398080

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 256 288 320 360 384 480 512 576 640 720 768 960 1024 1152 1280 1440 1536 1920 2048 2304 2560 2880 3072 3840 4096 4608 5120 5760 6144 7680 8192 9216 10240 11520 12288 15360 18432 20480 23040 24576 30720 36864 40960 46080 61440 73728 92160 122880 184320 368640 376097 752194 1128291 1504388 1880485 2256582 3008776 3384873 3760970 4513164 5641455 6017552 6769746 7521940 9026328 11282910 12035104 13539492 15043880 16924365 18052656 22565820 24070208 27078984 30087760 33848730 36105312 45131640 48140416 54157968 60175520 67697460 72210624 90263280 96280832 108315936 120351040 135394920 144421248 180526560 192561664 216631872 240702080 270789840 288842496 361053120 385123328 433263744 481404160 541579680 577684992 722106240 770246656 866527488 962808320 1083159360 1155369984 1444212480 1540493312 1733054976 1925616640 2166318720 2310739968 2888424960 3080986624 3466109952 3851233280 4332637440 4621479936 5776849920 6932219904 7702466560 8665274880 9242959872 11553699840 13864439808 15404933120 17330549760 23107399680 27728879616 34661099520 46214799360 69322199040 138644398080
• Sum of all divisors σ(n): 480605855652
• Sum of proper divisors (its aliquot sum) s(n): 341961457572
• 138644398080 is an abundant number, because the sum of its proper divisors (341961457572) is greater than itself. Its abundance is 203317059492

Bases of 138644398080

• Binary: 10000001000111110110011010000000000000₂
• Hexadecimal: 0x2047D9A000
• Base-36: 1ROXAM80

Squares and roots of 138644398080

• 138644398080 squared (138644398080²) is 19222269118965507686400
• 138644398080 cubed (138644398080³) is 2665059931730744725462541402112000
• The square root of 138644398080 is 372349.8329259729
• The cube root of 138644398080 is 5175.6802992785

Scales and comparisons

• 138,644,398,080 seconds is equal to 4,408 years, 24 weeks, 12 hours, 48 minutes.
• To count from 1 to 138,644,398,080 would take you about eight thousand, eight hundred sixteen 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 138644398080 cubic inches would be around 431.3 feet tall.

Recreational maths with 138644398080

• 138644398080 backwards is 080893446831
• The number of decimal digits it has is: 12
• The sum of 138644398080's digits is 54
• More coming soon!