1221241280

Names of 1221241280

• Cardinal: 1221241280 can be written as One billion, two hundred twenty-one million, two hundred forty-one thousand, two hundred eighty.

Scientific notation

• Scientific notation: 1.22124128 × 10⁹

Factors of 1221241280

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 497

Divisors of 1221241280

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 31 32 35 40 43 56 62 64 70 80 86 112 124 140 155 160 172 215 217 224 248 280 301 310 320 344 409 430 434 448 496 560 602 620 688 818 860 868 992 1085 1120 1204 1240 1333 1376 1505 1636 1720 1736 1984 2045 2170 2240 2408 2480 2666 2752 2863 3010 3272 3440 3472 4090 4340 4816 4960 5332 5726 6020 6544 6665 6880 6944 8180 8680 9331 9632 9920 10664 11452 12040 12679 13088 13330 13760 13888 14315 16360 17360 17587 18662 19264 21328 22904 24080 25358 26176 26660 28630 32720 34720 35174 37324 42656 45808 46655 48160 50716 53320 57260 63395 65440 69440 70348 74648 85312 87935 88753 91616 93310 96320 101432 106640 114520 123109 126790 130880 140696 149296 175870 177506 183232 186620 202864 213280 229040 246218 253580 281392 298592 351740 355012 373240 405728 426560 443765 458080 492436 507160 545197 562784 597184 615545 703480 710024 746480 811456 887530 916160 984872 1014320 1090394 1125568 1231090 1406960 1420048 1492960 1775060 1969744 2028640 2180788 2462180 2725985 2813920 2840096 2985920 3550120 3816379 3939488 4057280 4361576 4924360 5451970 5627840 5680192 7100240 7632758 7878976 8723152 9848720 10903940 14200480 15265516 17446304 19081895 19697440 21807880 28400960 30531032 34892608 38163790 39394880 43615760 61062064 76327580 87231520 122124128 152655160 174463040 244248256 305310320 610620640 1221241280
• Sum of all divisors σ(n): 3519098880
• Sum of proper divisors (its aliquot sum) s(n): 2297857600
• 1221241280 is an abundant number, because the sum of its proper divisors (2297857600) is greater than itself. Its abundance is 1076616320

Bases of 1221241280

• Binary: 1001000110010101010100111000000₂
• Hexadecimal: 0x48CAA9C0
• Base-36: K73FSW

Squares and roots of 1221241280

• 1221241280 squared (1221241280²) is 1491430263976038400
• 1221241280 cubed (1221241280³) is 1821396204608835024945152000
• The square root of 1221241280 is 34946.2627472525
• The cube root of 1221241280 is 1068.8919965453

Scales and comparisons

• 1,221,241,280 seconds is equal to 38 years, 43 weeks, 1 day, 17 hours, 41 minutes, 20 seconds.
• To count from 1 to 1,221,241,280 would take you about seventy-seven 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 1221241280 cubic inches would be around 89.1 feet tall.

Recreational maths with 1221241280

• 1221241280 backwards is 0821421221
• The number of decimal digits it has is: 10
• The sum of 1221241280's digits is 23
• More coming soon!