16215400640

Names of 16215400640

• Cardinal: 16215400640 can be written as Sixteen billion, two hundred fifteen million, four hundred thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.621540064 × 10¹⁰

Factors of 16215400640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 437

Divisors of 16215400640

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 5 8 10 16 20 31 32 40 61 62 64 80 122 124 127 155 160 211 244 248 254 305 310 320 422 488 496 508 610 620 635 844 976 992 1016 1055 1220 1240 1270 1688 1891 1952 1984 2032 2110 2440 2480 2540 3376 3782 3904 3937 4064 4220 4880 4960 5080 6541 6752 7564 7747 7874 8128 8440 9455 9760 9920 10160 12871 13082 13504 15128 15494 15748 16880 18910 19520 19685 20320 25742 26164 26797 30256 30988 31496 32705 33760 37820 38735 39370 40640 51484 52328 53594 60512 61976 62992 64355 65410 67520 75640 77470 78740 102968 104656 107188 121024 123952 125984 128710 130820 133985 151280 154940 157480 205936 209312 214376 240157 247904 251968 257420 261640 267970 302560 309880 314960 399001 411872 418624 428752 480314 495808 514840 523280 535940 605120 619760 629920 798002 823744 830707 857504 960628 1029680 1046560 1071880 1200785 1239520 1259840 1596004 1634617 1661414 1715008 1921256 1995005 2059360 2093120 2143760 2401570 2479040 3192008 3269234 3322828 3842512 3990010 4118720 4153535 4287520 4803140 6384016 6538468 6645656 7685024 7980020 8173085 8307070 8575040 9606280 12768032 13076936 13291312 15370048 15960040 16346170 16614140 19212560 25536064 26153872 26582624 31920080 32692340 33228280 38425120 50673127 52307744 53165248 63840160 65384680 66456560 76850240 101346254 104615488 127680320 130769360 132913120 202692508 253365635 261538720 265826240 405385016 506731270 523077440 810770032 1013462540 1621540064 2026925080 3243080128 4053850160 8107700320 16215400640
• Sum of all divisors σ(n): 41024421888
• Sum of proper divisors (its aliquot sum) s(n): 24809021248
• 16215400640 is an abundant number, because the sum of its proper divisors (24809021248) is greater than itself. Its abundance is 8593620608

Bases of 16215400640

• Binary: 1111000110100000110110000011000000₂
• Hexadecimal: 0x3C68360C0
• Base-36: 7G68B7K

Squares and roots of 16215400640

• 16215400640 squared (16215400640²) is 262939217915712409600
• 16215400640 cubed (16215400640³) is 4263664762471542472683782144000
• The square root of 16215400640 is 127339.7056695201
• The cube root of 16215400640 is 2531.0995569461

Scales and comparisons

• 16,215,400,640 seconds is equal to 515 years, 31 weeks, 1 day, 5 hours, 57 minutes, 20 seconds.
• To count from 1 to 16,215,400,640 would take you about one thousand and thirty-one 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 16215400640 cubic inches would be around 210.9 feet tall.

Recreational maths with 16215400640

• 16215400640 backwards is 04600451261
• The number of decimal digits it has is: 11
• The sum of 16215400640's digits is 29
• More coming soon!