138765312

Names of 138765312

• Cardinal: 138765312 can be written as One hundred thirty-eight million, seven hundred sixty-five thousand, three hundred twelve.

Scientific notation

• Scientific notation: 1.38765312 × 10⁸

Factors of 138765312

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 251

Divisors of 138765312

• Number of divisors d(n): 220
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 64 72 81 84 96 108 112 126 128 144 162 168 189 192 216 224 239 252 256 288 324 336 378 384 432 448 478 504 512 567 576 648 672 717 756 768 864 896 956 1008 1024 1134 1152 1296 1344 1434 1512 1536 1673 1728 1792 1912 2016 2151 2268 2304 2592 2688 2868 3024 3072 3346 3456 3584 3824 4032 4302 4536 4608 5019 5184 5376 5736 6048 6453 6692 6912 7168 7648 8064 8604 9072 9216 10038 10368 10752 11472 12096 12906 13384 13824 15057 15296 16128 17208 18144 19359 20076 20736 21504 22944 24192 25812 26768 27648 30114 30592 32256 34416 36288 38718 40152 41472 45171 45888 48384 51624 53536 60228 61184 64512 68832 72576 77436 80304 82944 90342 91776 96768 103248 107072 120456 122368 135513 137664 145152 154872 160608 180684 183552 193536 206496 214144 240912 244736 271026 275328 290304 309744 321216 361368 367104 412992 428288 481824 542052 550656 580608 619488 642432 722736 734208 825984 856576 963648 1084104 1101312 1238976 1284864 1445472 1651968 1713152 1927296 2168208 2202624 2477952 2569728 2890944 3303936 3854592 4336416 4955904 5139456 5781888 6607872 7709184 8672832 9911808 11563776 15418368 17345664 19823616 23127552 34691328 46255104 69382656 138765312
• Sum of all divisors σ(n): 475559040
• Sum of proper divisors (its aliquot sum) s(n): 336793728
• 138765312 is an abundant number, because the sum of its proper divisors (336793728) is greater than itself. Its abundance is 198028416

Bases of 138765312

• Binary: 1000010001010110010000000000₂
• Hexadecimal: 0x8456400
• Base-36: 2AM800

Squares and roots of 138765312

• 138765312 squared (138765312²) is 19255811814457344
• 138765312 cubed (138765312³) is 2672038734246459450851328
• The square root of 138765312 is 11779.8689296613
• The cube root of 138765312 is 517.7184458995

Scales and comparisons

• 138,765,312 seconds is equal to 4 years, 21 weeks, 3 days, 1 hour, 55 minutes, 12 seconds.
• To count from 1 to 138,765,312 would take you about six 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 138765312 cubic inches would be around 43.1 feet tall.

Recreational maths with 138765312

• 138765312 backwards is 213567831
• 138765312 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 138765312's digits is 36
• More coming soon!