138908624040

Names of 138908624040

• Cardinal: 138908624040 can be written as One hundred thirty-eight billion, nine hundred eight million, six hundred twenty-four thousand and forty.

Scientific notation

• Scientific notation: 1.3890862404 × 10¹¹

Factors of 138908624040

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 9537

Divisors of 138908624040

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 83 90 120 166 180 249 332 360 415 498 521 664 747 830 996 1042 1245 1494 1563 1660 1992 2084 2490 2605 2988 3126 3320 3735 4168 4689 4980 5210 5976 6252 7470 7815 8923 9378 9960 10420 12504 14940 15630 17846 18756 20840 23445 26769 29880 31260 35692 37512 43243 44615 46890 53538 62520 71384 80307 86486 89230 93780 107076 129729 133845 160614 172972 178460 187560 214152 216215 259458 267690 321228 345944 356920 389187 401535 432430 518916 535380 642456 648645 740609 778374 803070 864860 1037832 1070760 1297290 1481218 1556748 1606140 1729720 1945935 2221827 2594580 2962436 3113496 3212280 3703045 3891870 4443654 4648883 5189160 5924872 6665481 7406090 7783740 8887308 9297766 11109135 13330962 13946649 14812180 15567480 17774616 18595532 22218270 23244415 26661924 27893298 29624360 33327405 37191064 41839947 44436540 46488830 53323848 55786596 66654810 69733245 83679894 88873080 92977660 111573192 133309620 139466490 167359788 185955320 209199735 266619240 278932980 334719576 385857289 418399470 557865960 771714578 836798940 1157571867 1543429156 1673597880 1929286445 2315143734 3086858312 3472715601 3858572890 4630287468 5787859335 6945431202 7717145780 9260574936 11575718670 13890862404 15434291560 17363578005 23151437340 27781724808 34727156010 46302874680 69454312020 138908624040
• Sum of all divisors σ(n): 457820475840
• Sum of proper divisors (its aliquot sum) s(n): 318911851800
• 138908624040 is an abundant number, because the sum of its proper divisors (318911851800) is greater than itself. Its abundance is 180003227760

Bases of 138908624040

• Binary: 10000001010111100110010110010010101000₂
• Hexadecimal: 0x20579964A8
• Base-36: 1RTALWA0

Squares and roots of 138908624040

• 138908624040 squared (138908624040²) is 19295605832686065921600
• 138908624040 cubed (138908624040³) is 2680326056236619874450190515264000
• The square root of 138908624040 is 372704.4727931233
• The cube root of 138908624040 is 5178.9661184517

Scales and comparisons

• 138,908,624,040 seconds is equal to 4,416 years, 44 weeks, 6 days, 16 hours, 54 minutes.
• To count from 1 to 138,908,624,040 would take you about eight thousand, eight hundred thirty-three 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 138908624040 cubic inches would be around 431.6 feet tall.

Recreational maths with 138908624040

• 138908624040 backwards is 040426809831
• 138908624040 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138908624040's digits is 45
• More coming soon!