128421559890
128,421,559,890 is an even composite number composed of seven prime numbers multiplied together.
128421559890 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 128421559890:
2 × 33 × 5 × 13 × 37 × 307 × 3221
(2 × 3 × 3 × 3 × 5 × 13 × 37 × 307 × 3221)See below for interesting mathematical facts about the number 128421559890 from the Numbermatics database.
Names of 128421559890
- Cardinal: 128421559890 can be written as One hundred twenty-eight billion, four hundred twenty-one million, five hundred fifty-nine thousand, eight hundred ninety.
Scientific notation
- Scientific notation: 1.2842155989 × 1011
Factors of 128421559890
Divisors of 128421559890
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 3 5 6 9 10 13 15 18 26 27 30 37 39 45 54 65 74 78 90 111 117 130 135 185 195 222 234 270 307 333 351 370 390 481 555 585 614 666 702 921 962 999 1110 1170 1443 1535 1665 1755 1842 1998 2405 2763 2886 3070 3221 3330 3510 3991 4329 4605 4810 4995 5526 6442 7215 7982 8289 8658 9210 9663 9990 11359 11973 12987 13815 14430 16105 16578 19326 19955 21645 22718 23946 25974 27630 28989 32210 34077 35919 39910 41445 41873 43290 48315 56795 57978 59865 64935 68154 71838 82890 83746 86967 96630 102231 107757 113590 119177 119730 125619 129870 144945 147667 170385 173934 179595 204462 209365 215514 238354 251238 289890 295334 306693 340770 357531 359190 376857 418730 434835 443001 511155 538785 595885 613386 628095 715062 738335 753714 869670 886002 988847 1022310 1072593 1077570 1130571 1191770 1256190 1329003 1476670 1533465 1549301 1787655 1884285 1977694 2145186 2215005 2261142 2658006 2966541 3066930 3098602 3217779 3575310 3768570 3987009 4430010 4647903 4944235 5362965 5652855 5933082 6435558 6645015 7746505 7974018 8899623 9295806 9888470 10725930 11305710 12855011 13290030 13943709 14832705 15493010 16088895 17799246 19935045 23239515 25710022 26698869 27887418 29665410 32177790 36587339 38565033 39870090 41831127 44498115 46479030 53397738 64275055 69718545 73174678 77130066 83662254 88996230 109762017 115695099 128550110 133494345 139437090 182936695 192825165 209155635 219524034 231390198 266988690 329286051 347085297 365873390 385650330 418311270 475635407 548810085 578475495 658572102 694170594 951270814 987858153 1097620170 1156950990 1426906221 1646430255 1735426485 1975716306 2378177035 2853812442 3292860510 3470852970 4280718663 4756354070 4939290765 7134531105 8561437326 9878581530 12842155989 14269062210 21403593315 25684311978 42807186630 64210779945 128421559890
- Sum of all divisors σ(n): 380119703040
- Sum of proper divisors (its aliquot sum) s(n): 251698143150
- 128421559890 is an abundant number, because the sum of its proper divisors (251698143150) is greater than itself. Its abundance is 123276583260
Bases of 128421559890
- Binary: 11101111001101000010101111110010100102
- Hexadecimal: 0x1DE6857E52
- Base-36: 1MZUVPSI
Squares and roots of 128421559890
- 128421559890 squared (1284215598902) is 16492097044580856812100
- 128421559890 cubed (1284215598903) is 2117940828322332503042614626669000
-
The
square root of 128421559890 is 358359.5399734741 -
The
cube root of 128421559890 is 5045.2107637497
Scales and comparisons
How big is 128421559890?- 128,421,559,890 seconds is equal to 4,083 years, 21 weeks, 1 day, 15 hours, 31 minutes, 30 seconds.
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To count from 1 to 128,421,559,890 would take you about eight thousand, one hundred sixty-six 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 128421559890 cubic inches would be around 420.4 feet tall.
Recreational maths with 128421559890
- 128421559890 backwards is 098955124821
- 128421559890 is a
Harshad number . - The number of decimal digits it has is: 12
- The sum of 128421559890's digits is 54
- More coming soon!
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