21220830720
21,220,830,720 is an even composite number composed of five prime numbers multiplied together.
21220830720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred sixty divisors.
Prime factorization of 21220830720:
29 × 32 × 5 × 172 × 3187
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 17 × 17 × 3187)See below for interesting mathematical facts about the number 21220830720 from the Numbermatics database.
Names of 21220830720
- Cardinal: 21220830720 can be written as Twenty-one billion, two hundred twenty million, eight hundred thirty thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.122083072 × 1010
Factors of 21220830720
Divisors of 21220830720
- Number of divisors d(n): 360
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 30 32 34 36 40 45 48 51 60 64 68 72 80 85 90 96 102 120 128 136 144 153 160 170 180 192 204 240 255 256 272 288 289 306 320 340 360 384 408 480 510 512 544 576 578 612 640 680 720 765 768 816 867 960 1020 1088 1152 1156 1224 1280 1360 1440 1445 1530 1536 1632 1734 1920 2040 2176 2304 2312 2448 2560 2601 2720 2880 2890 3060 3187 3264 3468 3840 4080 4335 4352 4608 4624 4896 5202 5440 5760 5780 6120 6374 6528 6936 7680 8160 8670 8704 9248 9561 9792 10404 10880 11520 11560 12240 12748 13005 13056 13872 15935 16320 17340 18496 19122 19584 20808 21760 23040 23120 24480 25496 26010 26112 27744 28683 31870 32640 34680 36992 38244 39168 41616 43520 46240 47805 48960 50992 52020 54179 55488 57366 63740 65280 69360 73984 76488 78336 83232 92480 95610 97920 101984 104040 108358 110976 114732 127480 130560 138720 143415 147968 152976 162537 166464 184960 191220 195840 203968 208080 216716 221952 229464 254960 270895 277440 286830 305952 325074 332928 369920 382440 391680 407936 416160 433432 443904 458928 487611 509920 541790 554880 573660 611904 650148 665856 739840 764880 812685 815872 832320 866864 917856 921043 975222 1019840 1083580 1109760 1147320 1223808 1300296 1331712 1529760 1625370 1631744 1664640 1733728 1835712 1842086 1950444 2039680 2167160 2219520 2294640 2438055 2447616 2600592 2763129 3059520 3250740 3329280 3467456 3671424 3684172 3900888 4079360 4334320 4589280 4605215 4876110 4895232 5201184 5526258 6119040 6501480 6658560 6934912 7342848 7368344 7801776 8158720 8289387 8668640 9178560 9210430 9752220 10402368 11052516 12238080 13002960 13815645 13869824 14685696 14736688 15603552 16578774 17337280 18357120 18420860 19504440 20804736 22105032 24476160 26005920 27631290 27739648 29473376 31207104 33157548 34674560 36714240 36841720 39008880 41446935 41609472 44210064 52011840 55262580 58946752 62414208 66315096 69349120 73428480 73683440 78017760 82893870 83218944 88420128 104023680 110525160 117893504 124828416 132630192 138698240 147366880 156035520 165787740 176840256 208047360 221050320 235787008 249656832 265260384 294733760 312071040 331575480 353680512 416094720 442100640 471574016 530520768 589467520 624142080 663150960 707361024 884201280 1061041536 1178935040 1248284160 1326301920 1414722048 1768402560 2122083072 2357870080 2652603840 3536805120 4244166144 5305207680 7073610240 10610415360 21220830720
- Sum of all divisors σ(n): 78095664504
- Sum of proper divisors (its aliquot sum) s(n): 56874833784
- 21220830720 is an abundant number, because the sum of its proper divisors (56874833784) is greater than itself. Its abundance is 35654003064
Bases of 21220830720
- Binary: 100111100001101110000101110000000002
- Hexadecimal: 0x4F0DC2E00
- Base-36: 9QYC1S0
Squares and roots of 21220830720
- 21220830720 squared (212208307202) is 450323656446895718400
- 21220830720 cubed (212208307203) is 9556242082671010709659189248000
-
The
square root of 21220830720 is 145673.7132086637 -
The
cube root of 21220830720 is 2768.5611924169
Scales and comparisons
How big is 21220830720?- 21,220,830,720 seconds is equal to 674 years, 39 weeks, 2 days, 11 hours, 12 minutes.
-
To count from 1 to 21,220,830,720 would take you about one thousand, three hundred forty-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 21220830720 cubic inches would be around 230.7 feet tall.
Recreational maths with 21220830720
- 21220830720 backwards is 02703802212
- The number of decimal digits it has is: 11
- The sum of 21220830720's digits is 27
- More coming soon!
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