21222409728
21,222,409,728 is an even composite number composed of six prime numbers multiplied together.
21222409728 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 21222409728:
29 × 3 × 13 × 29 × 67 × 547
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 13 × 29 × 67 × 547)See below for interesting mathematical facts about the number 21222409728 from the Numbermatics database.
Names of 21222409728
- Cardinal: 21222409728 can be written as Twenty-one billion, two hundred twenty-two million, four hundred nine thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 2.1222409728 × 1010
Factors of 21222409728
Divisors of 21222409728
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 4 6 8 12 13 16 24 26 29 32 39 48 52 58 64 67 78 87 96 104 116 128 134 156 174 192 201 208 232 256 268 312 348 377 384 402 416 464 512 536 547 624 696 754 768 804 832 871 928 1072 1094 1131 1248 1392 1508 1536 1608 1641 1664 1742 1856 1943 2144 2188 2262 2496 2613 2784 3016 3216 3282 3328 3484 3712 3886 4288 4376 4524 4992 5226 5568 5829 6032 6432 6564 6656 6968 7111 7424 7772 8576 8752 9048 9984 10452 11136 11658 12064 12864 13128 13936 14222 14848 15544 15863 17152 17504 18096 19968 20904 21333 22272 23316 24128 25259 25728 26256 27872 28444 31088 31726 34304 35008 36192 36649 41808 42666 44544 46632 47589 48256 50518 51456 52512 55744 56888 62176 63452 70016 72384 73298 75777 83616 85332 93264 95178 96512 101036 102912 105024 109947 111488 113776 124352 126904 140032 144768 146596 151554 167232 170664 186528 190356 193024 202072 206219 210048 219894 222976 227552 248704 253808 280064 289536 293192 303108 334464 341328 373056 380712 404144 412438 420096 439788 445952 455104 476437 497408 507616 579072 586384 606216 618657 668928 682656 746112 761424 808288 824876 840192 879576 910208 952874 994816 1015232 1062821 1172768 1212432 1237314 1337856 1365312 1429311 1492224 1522848 1616576 1649752 1759152 1820416 1905748 2030464 2125642 2345536 2424864 2474628 2730624 2858622 2984448 3045696 3188463 3233152 3299504 3518304 3640832 3811496 4060928 4251284 4691072 4849728 4949256 5461248 5717244 6091392 6376926 6466304 6599008 7036608 7622992 8121856 8502568 9382144 9699456 9898512 10922496 11434488 12182784 12753852 12932608 13198016 13816673 14073216 15245984 17005136 18764288 19398912 19797024 22868976 24365568 25507704 26396032 27633346 28146432 30491968 34010272 38797824 39594048 41450019 45737952 51015408 52792064 55266692 56292864 60983936 68020544 79188096 82900038 91475904 102030816 105584128 110533384 121967872 136041088 158376192 165800076 182951808 204061632 221066768 243935744 272082176 316752384 331600152 365903616 408123264 442133536 544164352 663200304 731807232 816246528 884267072 1326400608 1632493056 1768534144 2652801216 3537068288 5305602432 7074136576 10611204864 21222409728
- Sum of all divisors σ(n): 64043400960
- Sum of proper divisors (its aliquot sum) s(n): 42820991232
- 21222409728 is an abundant number, because the sum of its proper divisors (42820991232) is greater than itself. Its abundance is 21598581504
Bases of 21222409728
- Binary: 100111100001111010001000110000000002
- Hexadecimal: 0x4F0F44600
- Base-36: 9QZ9W5C
Squares and roots of 21222409728
- 21222409728 squared (212224097282) is 450390674663109033984
- 21222409728 cubed (212224097283) is 9558375435370848285546724196352
-
The
square root of 21222409728 is 145679.1327816033 -
The
cube root of 21222409728 is 2768.6298587807
Scales and comparisons
How big is 21222409728?- 21,222,409,728 seconds is equal to 674 years, 41 weeks, 6 days, 17 hours, 48 minutes, 48 seconds.
-
To count from 1 to 21,222,409,728 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 21222409728 cubic inches would be around 230.7 feet tall.
Recreational maths with 21222409728
- 21222409728 backwards is 82790422212
- 21222409728 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21222409728's digits is 39
- More coming soon!
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