18157475840

Names of 18157475840

• Cardinal: 18157475840 can be written as Eighteen billion, one hundred fifty-seven million, four hundred seventy-five thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.815747584 × 10¹⁰

Factors of 18157475840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 194

Divisors of 18157475840

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 43 56 64 70 80 86 112 128 137 140 160 172 215 224 256 274 280 301 320 344 430 448 512 548 560 602 640 685 688 860 896 959 1024 1096 1120 1204 1280 1370 1376 1505 1720 1792 1849 1918 2048 2192 2240 2408 2560 2740 2752 3010 3440 3584 3698 3836 4384 4480 4795 4816 5120 5480 5504 5891 6020 6880 7168 7396 7672 8768 8960 9245 9590 9632 10240 10960 11008 11782 12040 12943 13760 14336 14792 15344 17536 17920 18490 19180 19264 21920 22016 23564 24080 25886 27520 29455 29584 30688 35072 35840 36980 38360 38528 41237 43840 44032 47128 48160 51772 55040 58910 59168 61376 64715 70144 71680 73960 76720 77056 82474 87680 88064 94256 96320 103544 110080 117820 118336 122752 129430 140288 147920 153440 154112 164948 175360 188512 192640 206185 207088 220160 235640 236672 245504 253313 258860 280576 295840 306880 308224 329896 350720 377024 385280 412370 414176 440320 471280 473344 491008 506626 517720 591680 613760 616448 659792 701440 754048 770560 824740 828352 942560 946688 982016 1013252 1035440 1183360 1227520 1266565 1319584 1402880 1508096 1541120 1649480 1656704 1773191 1885120 1893376 1964032 2026504 2070880 2366720 2455040 2533130 2639168 3016192 3082240 3298960 3313408 3546382 3770240 3786752 4053008 4141760 4733440 4910080 5066260 5278336 6032384 6597920 6626816 7092764 7540480 8106016 8283520 8865955 9466880 9820160 10132520 10556672 12064768 13195840 13253632 14185528 15080960 16212032 16567040 17731910 18933760 20265040 21113344 26391680 26507264 28371056 30161920 32424064 33134080 35463820 40530080 42226688 52783360 56742112 60323840 64848128 66268160 70927640 81060160 84453376 105566720 113484224 129696256 132536320 141855280 162120320 211133440 226968448 259392512 283710560 324240640 422266880 453936896 518785024 567421120 648481280 907873792 1134842240 1296962560 1815747584 2269684480 2593925120 3631495168 4539368960 9078737920 18157475840
• Sum of all divisors σ(n): 51348155040
• Sum of proper divisors (its aliquot sum) s(n): 33190679200
• 18157475840 is an abundant number, because the sum of its proper divisors (33190679200) is greater than itself. Its abundance is 15033203360

Bases of 18157475840

• Binary: 10000111010010001010001100000000000₂
• Hexadecimal: 0x43A451800
• Base-36: 8CAHQ0W

Squares and roots of 18157475840

• 18157475840 squared (18157475840²) is 329693928880183705600
• 18157475840 cubed (18157475840³) is 5986409548236613889193672704000
• The square root of 18157475840 is 134749.6784411747
• The cube root of 18157475840 is 2628.3618707725

Scales and comparisons

• 18,157,475,840 seconds is equal to 577 years, 18 weeks, 1 day, 23 hours, 17 minutes, 20 seconds.
• To count from 1 to 18,157,475,840 would take you about one thousand, one hundred fifty-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 18157475840 cubic inches would be around 219 feet tall.

Recreational maths with 18157475840

• 18157475840 backwards is 04857475181
• The number of decimal digits it has is: 11
• The sum of 18157475840's digits is 50
• More coming soon!