45139680

Names of 45139680

• Cardinal: 45139680 can be written as Forty-five million, one hundred thirty-nine thousand, six hundred eighty.

Scientific notation

• Scientific notation: 4.513968 × 10⁷

Factors of 45139680

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 53

Divisors of 45139680

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 43 45 48 54 60 72 80 81 86 90 96 108 120 129 135 144 160 162 172 180 215 216 240 243 258 270 288 324 344 360 387 405 430 432 480 486 516 540 645 648 688 720 729 774 810 860 864 972 1032 1080 1161 1215 1290 1296 1376 1440 1458 1548 1620 1720 1935 1944 2064 2160 2187 2322 2430 2580 2592 2916 3096 3240 3440 3483 3645 3870 3888 4128 4320 4374 4644 4860 5160 5805 5832 6192 6480 6561 6880 6966 7290 7740 7776 8748 9288 9720 10320 10449 10935 11610 11664 12384 12960 13122 13932 14580 15480 17415 17496 18576 19440 20640 20898 21870 23220 23328 26244 27864 29160 30960 31347 32805 34830 34992 37152 38880 41796 43740 46440 52245 52488 55728 58320 61920 62694 65610 69660 69984 83592 87480 92880 94041 104490 104976 111456 116640 125388 131220 139320 156735 167184 174960 185760 188082 208980 209952 250776 262440 278640 282123 313470 334368 349920 376164 417960 470205 501552 524880 557280 564246 626940 752328 835920 940410 1003104 1049760 1128492 1253880 1410615 1504656 1671840 1880820 2256984 2507760 2821230 3009312 3761640 4513968 5015520 5642460 7523280 9027936 11284920 15046560 22569840 45139680
• Sum of all divisors σ(n): 163675512
• Sum of proper divisors (its aliquot sum) s(n): 118535832
• 45139680 is an abundant number, because the sum of its proper divisors (118535832) is greater than itself. Its abundance is 73396152

Bases of 45139680

• Binary: 10101100001100011011100000₂
• Hexadecimal: 0x2B0C6E0
• Base-36: QVI00

Squares and roots of 45139680

• 45139680 squared (45139680²) is 2037590710502400
• 45139680 cubed (45139680³) is 91976192643050975232000
• The square root of 45139680 is 6718.6069984781
• The cube root of 45139680 is 356.0569702203

Scales and comparisons

• 45,139,680 seconds is equal to 1 year, 22 weeks, 4 days, 10 hours, 48 minutes.
• To count from 1 to 45,139,680 would take you about two 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 45139680 cubic inches would be around 29.7 feet tall.

Recreational maths with 45139680

• 45139680 backwards is 08693154
• 45139680 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 45139680's digits is 36
• More coming soon!