28129991040
28,129,991,040 is an even composite number composed of five prime numbers multiplied together.
28129991040 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 28129991040:
27 × 35 × 5 × 191 × 947
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 5 × 191 × 947)See below for interesting mathematical facts about the number 28129991040 from the Numbermatics database.
Names of 28129991040
- Cardinal: 28129991040 can be written as Twenty-eight billion, one hundred twenty-nine million, nine hundred ninety-one thousand and forty.
Scientific notation
- Scientific notation: 2.812999104 × 1010
Factors of 28129991040
Divisors of 28129991040
- Number of divisors d(n): 384
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 81 90 96 108 120 128 135 144 160 162 180 191 192 216 240 243 270 288 320 324 360 382 384 405 432 480 486 540 573 576 640 648 720 764 810 864 947 955 960 972 1080 1146 1152 1215 1296 1440 1528 1620 1719 1728 1894 1910 1920 1944 2160 2292 2430 2592 2841 2865 2880 3056 3240 3438 3456 3788 3820 3888 4320 4584 4735 4860 5157 5184 5682 5730 5760 6112 6480 6876 7576 7640 7776 8523 8595 8640 9168 9470 9720 10314 10368 11364 11460 12224 12960 13752 14205 15152 15280 15471 15552 17046 17190 17280 18336 18940 19440 20628 22728 22920 24448 25569 25785 25920 27504 28410 30304 30560 30942 31104 34092 34380 36672 37880 38880 41256 42615 45456 45840 46413 51138 51570 51840 55008 56820 60608 61120 61884 68184 68760 73344 75760 76707 77355 77760 82512 85230 90912 91680 92826 102276 103140 110016 113640 121216 122240 123768 127845 136368 137520 151520 153414 154710 155520 165024 170460 180877 181824 183360 185652 204552 206280 220032 227280 230121 232065 247536 255690 272736 275040 303040 306828 309420 330048 340920 361754 363648 366720 371304 383535 409104 412560 454560 460242 464130 495072 511380 542631 545472 550080 606080 613656 618840 660096 681840 723508 742608 767070 818208 825120 904385 909120 920484 928260 990144 1022760 1085262 1090944 1100160 1150605 1227312 1237680 1363680 1447016 1485216 1534140 1627893 1636416 1650240 1808770 1818240 1840968 1856520 1980288 2045520 2170524 2301210 2454624 2475360 2713155 2727360 2894032 2970432 3068280 3255786 3272832 3300480 3617540 3681936 3713040 4091040 4341048 4602420 4883679 4909248 4950720 5426310 5454720 5788064 5940864 6136560 6511572 7235080 7363872 7426080 8139465 8182080 8682096 9204840 9767358 9818496 9901440 10852620 11576128 12273120 13023144 14470160 14651037 14727744 14852160 16278930 16364160 17364192 18409680 19534716 21705240 23152256 24418395 24546240 26046288 28940320 29302074 29455488 29704320 32557860 34728384 36819360 39069432 43410480 43953111 48836790 49092480 52092576 57880640 58604148 65115720 69456768 73255185 73638720 78138864 86820960 87906222 97673580 104185152 115761280 117208296 130231440 146510370 147277440 156277728 173641920 175812444 195347160 208370304 219765555 234416592 260462880 293020740 312555456 347283840 351624888 390694320 439531110 468833184 520925760 586041480 625110912 703249776 781388640 879062220 937666368 1041851520 1172082960 1406499552 1562777280 1758124440 1875332736 2344165920 2812999104 3125554560 3516248880 4688331840 5625998208 7032497760 9376663680 14064995520 28129991040
- Sum of all divisors σ(n): 101368350720
- Sum of proper divisors (its aliquot sum) s(n): 73238359680
- 28129991040 is an abundant number, because the sum of its proper divisors (73238359680) is greater than itself. Its abundance is 45108368640
Bases of 28129991040
- Binary: 110100011001010110110011001100000002
- Hexadecimal: 0x68CAD9980
- Base-36: CX7VC00
Squares and roots of 28129991040
- 28129991040 squared (281299910402) is 791296395910480281600
- 28129991040 cubed (281299910403) is 22259160526946102963504676864000
-
The
square root of 28129991040 is 167719.9780586677 -
The
cube root of 28129991040 is 3041.2808775967
Scales and comparisons
How big is 28129991040?- 28,129,991,040 seconds is equal to 894 years, 23 weeks, 1 day, 14 hours, 24 minutes.
-
To count from 1 to 28,129,991,040 would take you about one thousand, seven hundred eighty-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 28129991040 cubic inches would be around 253.4 feet tall.
Recreational maths with 28129991040
- 28129991040 backwards is 04019992182
- 28129991040 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 28129991040's digits is 45
- More coming soon!
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