1242147840

Names of 1242147840

• Cardinal: 1242147840 can be written as One billion, two hundred forty-two million, one hundred forty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.24214784 × 10⁹

Factors of 1242147840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 165

Divisors of 1242147840

• Number of divisors d(n): 352
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 32 34 40 48 51 60 64 67 68 71 80 85 96 102 120 128 134 136 142 160 170 192 201 204 213 240 255 256 268 272 284 320 335 340 355 384 402 408 426 480 510 512 536 544 568 640 670 680 710 768 804 816 852 960 1005 1020 1024 1065 1072 1088 1136 1139 1207 1280 1340 1360 1420 1536 1608 1632 1704 1920 2010 2040 2130 2144 2176 2272 2278 2414 2560 2680 2720 2840 3072 3216 3264 3408 3417 3621 3840 4020 4080 4260 4288 4352 4544 4556 4757 4828 5120 5360 5440 5680 5695 6035 6432 6528 6816 6834 7242 7680 8040 8160 8520 8576 8704 9088 9112 9514 9656 10720 10880 11360 11390 12070 12864 13056 13632 13668 14271 14484 15360 16080 16320 17040 17085 17152 17408 18105 18176 18224 19028 19312 21440 21760 22720 22780 23785 24140 25728 26112 27264 27336 28542 28968 32160 32640 34080 34170 34304 36210 36352 36448 38056 38624 42880 43520 45440 45560 47570 48280 51456 52224 54528 54672 57084 57936 64320 65280 68160 68340 68608 71355 72420 72704 72896 76112 77248 80869 85760 87040 90880 91120 95140 96560 102912 109056 109344 114168 115872 128640 130560 136320 136680 142710 144840 145792 152224 154496 161738 171520 181760 182240 190280 193120 205824 218112 218688 228336 231744 242607 257280 261120 272640 273360 285420 289680 291584 304448 308992 323476 343040 363520 364480 380560 386240 404345 437376 456672 463488 485214 514560 545280 546720 570840 579360 583168 608896 617984 646952 728960 761120 772480 808690 874752 913344 926976 970428 1029120 1090560 1093440 1141680 1158720 1166336 1213035 1217792 1235968 1293904 1457920 1522240 1544960 1617380 1749504 1826688 1853952 1940856 2186880 2283360 2317440 2426070 2435584 2587808 2915840 3044480 3089920 3234760 3499008 3653376 3707904 3881712 4373760 4566720 4634880 4852140 4871168 5175616 5831680 6088960 6179840 6469520 7306752 7763424 8747520 9133440 9269760 9704280 10351232 12177920 12939040 14613504 15526848 17495040 18266880 18539520 19408560 20702464 24355840 25878080 31053696 36533760 38817120 41404928 51756160 62107392 73067520 77634240 82809856 103512320 124214784 155268480 207024640 248429568 310536960 414049280 621073920 1242147840
• Sum of all divisors σ(n): 4329552384
• Sum of proper divisors (its aliquot sum) s(n): 3087404544
• 1242147840 is an abundant number, because the sum of its proper divisors (3087404544) is greater than itself. Its abundance is 1845256704

Bases of 1242147840

• Binary: 1001010000010011010110000000000₂
• Hexadecimal: 0x4A09AC00
• Base-36: KJJJEO

Squares and roots of 1242147840

• 1242147840 squared (1242147840²) is 1542931256416665600
• 1242147840 cubed (1242147840³) is 1916548727426447315042304000
• The square root of 1242147840 is 35244.1178070895
• The cube root of 1242147840 is 1074.9570099989

Scales and comparisons

• 1,242,147,840 seconds is equal to 39 years, 25 weeks, 5 days, 17 hours, 4 minutes.
• To count from 1 to 1,242,147,840 would take you about seventy-eight 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 1242147840 cubic inches would be around 89.6 feet tall.

Recreational maths with 1242147840

• 1242147840 backwards is 0487412421
• The number of decimal digits it has is: 10
• The sum of 1242147840's digits is 33
• More coming soon!