20438751840

Names of 20438751840

• Cardinal: 20438751840 can be written as Twenty billion, four hundred thirty-eight million, seven hundred fifty-one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.043875184 × 10¹⁰

Factors of 20438751840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 14861

Divisors of 20438751840

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 17 20 24 26 30 32 34 39 40 48 51 52 60 65 68 78 80 85 96 102 104 120 130 136 156 160 169 170 195 204 208 221 240 255 260 272 312 338 340 390 408 416 442 480 507 510 520 544 624 663 676 680 780 816 845 884 1014 1020 1040 1105 1248 1326 1352 1360 1560 1632 1690 1768 2028 2040 2080 2210 2535 2652 2704 2720 2873 3120 3315 3380 3536 4056 4080 4420 5070 5304 5408 5746 6240 6630 6760 7072 8112 8160 8619 8840 10140 10608 11492 13260 13520 14365 14821 16224 17238 17680 20280 21216 22984 26520 27040 28730 29642 34476 35360 40560 43095 44463 45968 53040 57460 59284 68952 74105 81120 86190 88926 91936 106080 114920 118568 137904 148210 172380 177852 192673 222315 229840 237136 251957 275808 296420 344760 355704 385346 444630 459680 474272 503914 578019 592840 689520 711408 755871 770692 889260 963365 1007828 1156038 1185680 1259785 1379040 1422816 1511742 1541384 1778520 1926730 2015656 2312076 2371360 2504749 2519570 2890095 3023484 3082768 3275441 3557040 3779355 3853460 4031312 4624152 5009498 5039140 5780190 6046968 6165536 6550882 7114080 7514247 7558710 7706920 8062624 9248304 9826323 10018996 10078280 11560380 12093936 12523745 13101764 15028494 15117420 15413840 16377205 18496608 19652646 20037992 20156560 23120760 24187872 25047490 26203528 30056988 30234840 30827680 32754410 37571235 39305292 40075984 40313120 42580733 46241520 49131615 50094980 52407056 60113976 60469680 65508820 75142470 78610584 80151968 85161466 92483040 98263230 100189960 104814112 120227952 120939360 127742199 131017640 150284940 157221168 170322932 196526460 200379920 212903665 240455904 255484398 262035280 300569880 314442336 340645864 393052920 400759840 425807330 510968796 524070560 601139760 638710995 681291728 786105840 851614660 1021937592 1202279520 1277421990 1362583456 1572211680 1703229320 2043875184 2554843980 3406458640 4087750368 5109687960 6812917280 10219375920 20438751840
• Sum of all divisors σ(n): 73821386016
• Sum of proper divisors (its aliquot sum) s(n): 53382634176
• 20438751840 is an abundant number, because the sum of its proper divisors (53382634176) is greater than itself. Its abundance is 32943882336

Bases of 20438751840

• Binary: 10011000010001111101001101001100000₂
• Hexadecimal: 0x4C23E9A60
• Base-36: 9E0PDUO

Squares and roots of 20438751840

• 20438751840 squared (20438751840²) is 417742576777103385600
• 20438751840 cubed (20438751840³) is 8538136859749363092302229504000
• The square root of 20438751840 is 142964.1627821463
• The cube root of 20438751840 is 2734.1234738611

Scales and comparisons

• 20,438,751,840 seconds is equal to 649 years, 46 weeks, 1 day, 15 hours, 4 minutes.
• To count from 1 to 20,438,751,840 would take you about one thousand, two hundred ninety-nine 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 20438751840 cubic inches would be around 227.8 feet tall.

Recreational maths with 20438751840

• 20438751840 backwards is 04815783402
• The number of decimal digits it has is: 11
• The sum of 20438751840's digits is 42
• More coming soon!