21731996520
21,731,996,520 is an even composite number composed of six prime numbers multiplied together.
21731996520 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 21731996520:
23 × 33 × 5 × 13 × 157 × 9859
(2 × 2 × 2 × 3 × 3 × 3 × 5 × 13 × 157 × 9859)See below for interesting mathematical facts about the number 21731996520 from the Numbermatics database.
Names of 21731996520
- Cardinal: 21731996520 can be written as Twenty-one billion, seven hundred thirty-one million, nine hundred ninety-six thousand, five hundred twenty.
Scientific notation
- Scientific notation: 2.173199652 × 1010
Factors of 21731996520
Divisors of 21731996520
- Number of divisors d(n): 256
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 26 27 30 36 39 40 45 52 54 60 65 72 78 90 104 108 117 120 130 135 156 157 180 195 216 234 260 270 312 314 351 360 390 468 471 520 540 585 628 702 780 785 936 942 1080 1170 1256 1404 1413 1560 1570 1755 1884 2041 2340 2355 2808 2826 3140 3510 3768 4082 4239 4680 4710 5652 6123 6280 7020 7065 8164 8478 9420 9859 10205 11304 12246 14040 14130 16328 16956 18369 18840 19718 20410 21195 24492 28260 29577 30615 33912 36738 39436 40820 42390 48984 49295 55107 56520 59154 61230 73476 78872 81640 84780 88731 91845 98590 110214 118308 122460 128167 146952 147885 169560 177462 183690 197180 220428 236616 244920 256334 266193 275535 295770 354924 367380 384501 394360 440856 443655 512668 532386 551070 591540 640835 709848 734760 769002 887310 1025336 1064772 1102140 1153503 1183080 1281670 1330965 1538004 1547863 1774620 1922505 2129544 2204280 2307006 2563340 2661930 3076008 3095726 3460509 3549240 3845010 4614012 4643589 5126680 5323860 5767515 6191452 6921018 7690020 7739315 9228024 9287178 10647720 11535030 12382904 13842036 13930767 15380040 15478630 17302545 18574356 20122219 23070060 23217945 27684072 27861534 30957260 34605090 37148712 40244438 41792301 46140120 46435890 55723068 60366657 61914520 69210180 69653835 80488876 83584602 92871780 100611095 111446136 120733314 138420360 139307670 160977752 167169204 181099971 185743560 201222190 208961505 241466628 278615340 301833285 334338408 362199942 402444380 417923010 482933256 543299913 557230680 603666570 724399884 804888760 835846020 905499855 1086599826 1207333140 1448799768 1671692040 1810999710 2173199652 2414666280 2716499565 3621999420 4346399304 5432999130 7243998840 10865998260 21731996520
- Sum of all divisors σ(n): 78517152000
- Sum of proper divisors (its aliquot sum) s(n): 56785155480
- 21731996520 is an abundant number, because the sum of its proper divisors (56785155480) is greater than itself. Its abundance is 35053158960
Bases of 21731996520
- Binary: 101000011110101001111110011011010002
- Hexadecimal: 0x50F53F368
- Base-36: 9ZEO3U0
Squares and roots of 21731996520
- 21731996520 squared (217319965202) is 472279672745292110400
- 21731996520 cubed (217319965203) is 10263580204567426989596255808000
-
The
square root of 21731996520 is 147417.7618877725 -
The
cube root of 21731996520 is 2790.6146870863
Scales and comparisons
How big is 21731996520?- 21,731,996,520 seconds is equal to 691 years, 3 days, 17 hours, 42 minutes.
-
To count from 1 to 21,731,996,520 would take you about one thousand, three hundred eighty-two 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 21731996520 cubic inches would be around 232.6 feet tall.
Recreational maths with 21731996520
- 21731996520 backwards is 02569913712
- 21731996520 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21731996520's digits is 45
- More coming soon!
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