16405139920
16,405,139,920 is an even composite number composed of seven prime numbers multiplied together.
What does the number 16405139920 look like?
This visualization shows the relationship between its 7 prime factors (large circles) and 320 divisors.
16405139920 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 16405139920:
24 × 5 × 13 × 29 × 37 × 61 × 241
(2 × 2 × 2 × 2 × 5 × 13 × 29 × 37 × 61 × 241)See below for interesting mathematical facts about the number 16405139920 from the Numbermatics database.
Names of 16405139920
- Cardinal: 16405139920 can be written as Sixteen billion, four hundred five million, one hundred thirty-nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 1.640513992 × 1010
Factors of 16405139920
Divisors of 16405139920
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 4 5 8 10 13 16 20 26 29 37 40 52 58 61 65 74 80 104 116 122 130 145 148 185 208 232 241 244 260 290 296 305 370 377 464 481 482 488 520 580 592 610 740 754 793 962 964 976 1040 1073 1160 1205 1220 1480 1508 1586 1769 1885 1924 1928 2146 2257 2320 2405 2410 2440 2960 3016 3133 3172 3538 3770 3848 3856 3965 4292 4514 4810 4820 4880 5365 6032 6266 6344 6989 7076 7540 7696 7930 8584 8845 8917 9028 9620 9640 10730 11285 12532 12688 13949 13978 14152 14701 15080 15665 15860 17168 17690 17834 18056 19240 19280 21460 22570 22997 25064 27898 27956 28304 29341 29402 30160 31330 31720 34945 35380 35668 36112 38480 42920 44585 45140 45994 50128 55796 55912 58682 58804 62660 63440 65453 69745 69890 70760 71336 73505 85840 89170 90280 90857 91988 111592 111824 114985 115921 117364 117608 125320 130906 139490 139780 141520 142672 146705 147010 178340 180560 181714 183976 191113 223184 229970 231842 234728 235216 250640 258593 261812 278980 279560 293410 294020 327265 356680 363428 367952 382226 426329 454285 459940 463684 469456 517186 523624 543937 557960 559120 579605 586820 588040 654530 713360 726856 764452 850889 852658 908570 919880 927368 955565 1034372 1047248 1087874 1115920 1159210 1173640 1176080 1292965 1309060 1453712 1528904 1701778 1705316 1817140 1839760 1854736 1911130 2068744 2131645 2175748 2318420 2347280 2585930 2618120 2719685 3057808 3361709 3403556 3410632 3634280 3822260 4137488 4254445 4263290 4351496 4636840 5171860 5236240 5439370 5542277 6723418 6807112 6821264 7071181 7268560 7644520 8508890 8526580 8702992 9273680 10343720 10878740 11084554 13446836 13614224 14142362 15289040 15774173 16808545 17017780 17053160 20687440 21757480 22169108 26893672 27711385 28284724 31548346 33617090 34035560 34106320 35355905 43514960 44338216 53787344 55422770 56569448 63096692 67234180 68071120 70711810 78870865 88676432 110845540 113138896 126193384 134468360 141423620 157741730 205064249 221691080 252386768 268936720 282847240 315483460 410128498 443382160 565694480 630966920 820256996 1025321245 1261933840 1640513992 2050642490 3281027984 4101284980 8202569960 16405139920
- Sum of all divisors σ(n): 44540274240
- Sum of proper divisors (its aliquot sum) s(n): 28135134320
- 16405139920 is an abundant number, because the sum of its proper divisors (28135134320) is greater than itself. Its abundance is 11729994400
Bases of 16405139920
- Binary: 11110100011101001010010001110100002
- Hexadecimal: 0x3D1D291D0
- Base-36: 7JB72Z4
Squares and roots of 16405139920
- 16405139920 squared (164051399202) is 269128615794777606400
- 16405139920 cubed (164051399203) is 4415092598589248638274687488000
-
The
square root of 16405139920 is 128082.5511925805 -
The
cube root of 16405139920 is 2540.9335812199
Scales and comparisons
How big is 16405139920?- 16,405,139,920 seconds is equal to 521 years, 32 weeks, 6 days, 7 hours, 18 minutes, 40 seconds.
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To count from 1 to 16,405,139,920 would take you about one thousand and forty-three 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 16405139920 cubic inches would be around 211.7 feet tall.
Recreational maths with 16405139920
- 16405139920 backwards is 02993150461
- 16405139920 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 16405139920's digits is 40
- More coming soon!
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