1321990040

Names of 1321990040

• Cardinal: 1321990040 can be written as One billion, three hundred twenty-one million, nine hundred ninety thousand and forty.

Scientific notation

• Scientific notation: 1.32199004 × 10⁹

Factors of 1321990040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 62

Divisors of 1321990040

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 8 10 14 17 20 28 31 34 35 40 56 62 68 70 85 119 124 136 140 155 170 217 238 248 280 289 310 340 434 476 527 578 595 620 680 868 952 961 1054 1085 1156 1190 1240 1445 1736 1922 2023 2108 2170 2312 2380 2635 2890 3689 3844 4046 4216 4340 4760 4805 4913 5270 5780 6727 7378 7688 8092 8680 8959 9610 9826 10115 10540 11560 13454 14756 16184 16337 17918 18445 19220 19652 20230 21080 24565 26908 29512 32674 33635 34391 35836 36890 38440 39304 40460 44795 49130 53816 62713 65348 67270 68782 71672 73780 80920 81685 89590 98260 114359 125426 130696 134540 137564 147560 152303 163370 171955 179180 196520 228718 250852 269080 275128 277729 304606 313565 326740 343910 358360 457436 501704 555458 571795 609212 627130 653480 687820 761515 914872 1066121 1110916 1143590 1218424 1254260 1375640 1388645 1523030 1944103 2132242 2221832 2287180 2508520 2777290 3046060 3888206 4264484 4574360 4721393 5330605 5554580 6092120 7776412 8528968 9442786 9720515 10661210 11109160 15552824 18885572 19441030 21322420 23606965 33049751 37771144 38882060 42644840 47213930 66099502 77764120 94427860 132199004 165248755 188855720 264398008 330497510 660995020 1321990040
• Sum of all divisors σ(n): 3732091200
• Sum of proper divisors (its aliquot sum) s(n): 2410101160
• 1321990040 is an abundant number, because the sum of its proper divisors (2410101160) is greater than itself. Its abundance is 1088111120

Bases of 1321990040

• Binary: 1001110110010111111011110011000₂
• Hexadecimal: 0x4ECBF798
• Base-36: LV2U1K

Squares and roots of 1321990040

• 1321990040 squared (1321990040²) is 1747657665859201600
• 1321990040 cubed (1321990040³) is 2310386027595512557552064000
• The square root of 1321990040 is 36359.1809588719
• The cube root of 1321990040 is 1097.5122955297

Scales and comparisons

• 1,321,990,040 seconds is equal to 42 years, 1 week, 5 days, 19 hours, 27 minutes, 20 seconds.
• To count from 1 to 1,321,990,040 would take you about eighty-four 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 1321990040 cubic inches would be around 91.5 feet tall.

Recreational maths with 1321990040

• 1321990040 backwards is 0400991231
• The number of decimal digits it has is: 10
• The sum of 1321990040's digits is 29
• More coming soon!