31918990040
31,918,990,040 is an even composite number composed of six prime numbers multiplied together.
31918990040 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 31918990040:
23 × 5 × 74 × 31 × 71 × 151
(2 × 2 × 2 × 5 × 7 × 7 × 7 × 7 × 31 × 71 × 151)See below for interesting mathematical facts about the number 31918990040 from the Numbermatics database.
Names of 31918990040
- Cardinal: 31918990040 can be written as Thirty-one billion, nine hundred eighteen million, nine hundred ninety thousand and forty.
Scientific notation
- Scientific notation: 3.191899004 × 1010
Factors of 31918990040
Divisors of 31918990040
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 4 5 7 8 10 14 20 28 31 35 40 49 56 62 70 71 98 124 140 142 151 155 196 217 245 248 280 284 302 310 343 355 392 434 490 497 568 604 620 686 710 755 868 980 994 1057 1085 1208 1240 1372 1420 1510 1519 1715 1736 1960 1988 2114 2170 2201 2401 2485 2744 2840 3020 3038 3430 3479 3976 4228 4340 4402 4681 4802 4970 5285 6040 6076 6860 6958 7399 7595 8456 8680 8804 9362 9604 9940 10570 10633 10721 11005 12005 12152 13720 13916 14798 15190 15407 17395 17608 18724 19208 19880 21140 21266 21442 22010 23405 24010 24353 27832 29596 30380 30814 32767 34790 36995 37448 42280 42532 42884 44020 46810 48020 48706 51793 53165 53605 59192 60760 61628 65534 69580 73990 74431 75047 77035 85064 85768 88040 93620 96040 97412 103586 106330 107210 107849 121765 123256 131068 139160 147980 148862 150094 154070 163835 170471 187240 194824 207172 212660 214420 215698 229369 243530 258965 262136 295960 297724 300188 308140 327670 332351 340942 362551 372155 375235 414344 425320 428840 431396 458738 487060 517930 525329 539245 595448 600376 616280 655340 664702 681884 725102 744310 750470 754943 852355 862792 917476 974120 1035860 1050658 1078490 1146845 1310680 1329404 1363768 1450204 1488620 1500940 1509886 1605583 1661755 1704710 1812755 1834952 2071720 2101316 2156980 2293690 2326457 2626645 2658808 2900408 2977240 3001880 3019772 3211166 3323510 3409420 3625510 3677303 3774715 4202632 4313960 4587380 4652914 5253290 5284601 6039544 6422332 6647020 6818840 7251020 7354606 7549430 8027915 9174760 9305828 10506580 10569202 11239081 11632285 12844664 13294040 14502040 14709212 15098860 16055830 16285199 18386515 18611656 21013160 21138404 22478162 23264570 25741121 26423005 29418424 30197720 32111660 32570398 36773030 42276808 44956324 46529140 51482242 52846010 56195405 64223320 65140796 73546060 81425995 89912648 93058280 102964484 105692020 112390810 113996393 128705605 130281592 147092120 162851990 205928968 211384040 224781620 227992786 257411210 325703980 449563240 455985572 514822420 569981965 651407960 797974751 911971144 1029644840 1139963930 1595949502 2279927860 3191899004 3989873755 4559855720 6383798008 7979747510 15959495020 31918990040
- Sum of all divisors σ(n): 88283934720
- Sum of proper divisors (its aliquot sum) s(n): 56364944680
- 31918990040 is an abundant number, because the sum of its proper divisors (56364944680) is greater than itself. Its abundance is 24445954640
Bases of 31918990040
- Binary: 111011011101000010100100010110110002
- Hexadecimal: 0x76E8522D8
- Base-36: ENVQQC8
Squares and roots of 31918990040
- 31918990040 squared (319189900402) is 1018821925173619201600
- 31918990040 cubed (319189900403) is 32519766882150376566623152064000
-
The
square root of 31918990040 is 178658.8649913573 -
The
cube root of 31918990040 is 3172.1207713487
Scales and comparisons
How big is 31918990040?- 31,918,990,040 seconds is equal to 1,014 years, 48 weeks, 18 hours, 7 minutes, 20 seconds.
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To count from 1 to 31,918,990,040 would take you about two thousand and twenty-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 31918990040 cubic inches would be around 264.3 feet tall.
Recreational maths with 31918990040
- 31918990040 backwards is 04009981913
- The number of decimal digits it has is: 11
- The sum of 31918990040's digits is 44
- More coming soon!
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