7138289730

Names of 7138289730

• Cardinal: 7138289730 can be written as Seven billion, one hundred thirty-eight million, two hundred eighty-nine thousand, seven hundred thirty.

Scientific notation

• Scientific notation: 7.13828973 × 10⁹

Factors of 7138289730

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 822

Divisors of 7138289730

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 5 6 10 11 13 15 22 26 30 33 39 55 65 66 78 110 121 130 143 165 195 242 286 330 331 363 390 429 457 605 662 715 726 858 914 993 1210 1371 1430 1573 1655 1815 1986 2145 2285 2742 3146 3310 3630 3641 4290 4303 4570 4719 4965 5027 5941 6855 7282 7865 8606 9438 9930 10054 10923 11882 12909 13710 15081 15730 17823 18205 21515 21846 23595 25135 25818 29705 30162 35646 36410 40051 43030 47190 47333 50270 54615 55297 59410 64545 65351 75405 80102 89115 94666 109230 110594 120153 129090 130702 141999 150810 151267 165891 178230 196053 200255 236665 240306 276485 283998 302534 326755 331782 392106 400510 453801 473330 520663 552970 600765 653510 709995 718861 756335 829455 907602 980265 1041326 1201530 1419990 1437722 1512670 1561989 1658910 1663937 1960530 1966471 2156583 2269005 2603315 3123978 3327874 3594305 3932942 4313166 4538010 4991811 5206630 5899413 7188610 7809945 8319685 9832355 9983622 10782915 11798826 15619890 16639370 18303307 19664710 21565830 21631181 24959055 29497065 36606614 43262362 49918110 54909921 58994130 64893543 91516535 108155905 109819842 129787086 183033070 216311810 237942991 274549605 324467715 475885982 549099210 648935430 713828973 1189714955 1427657946 2379429910 3569144865 7138289730
• Sum of all divisors σ(n): 20385235584
• Sum of proper divisors (its aliquot sum) s(n): 13246945854
• 7138289730 is an abundant number, because the sum of its proper divisors (13246945854) is greater than itself. Its abundance is 6108656124

Bases of 7138289730

• Binary: 110101001011110011010100001000010₂
• Hexadecimal: 0x1A979A842
• Base-36: 3A1YBLU

Squares and roots of 7138289730

• 7138289730 squared (7138289730²) is 50955180269423472900
• 7138289730 cubed (7138289730³) is 363732840007524209623003317000
• The square root of 7138289730 is 84488.3999730141
• The cube root of 7138289730 is 1925.4462094871

Scales and comparisons

• 7,138,289,730 seconds is equal to 226 years, 50 weeks, 5 days, 2 hours, 15 minutes, 30 seconds.
• To count from 1 to 7,138,289,730 would take you about four hundred fifty-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 7138289730 cubic inches would be around 160.5 feet tall.

Recreational maths with 7138289730

• 7138289730 backwards is 0379828317
• The number of decimal digits it has is: 10
• The sum of 7138289730's digits is 48
• More coming soon!