21321239520
21,321,239,520 is an even composite number composed of seven prime numbers multiplied together.
21321239520 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21321239520:
25 × 3 × 5 × 7 × 17 × 31 × 12041
(2 × 2 × 2 × 2 × 2 × 3 × 5 × 7 × 17 × 31 × 12041)See below for interesting mathematical facts about the number 21321239520 from the Numbermatics database.
Names of 21321239520
- Cardinal: 21321239520 can be written as Twenty-one billion, three hundred twenty-one million, two hundred thirty-nine thousand, five hundred twenty.
Scientific notation
- Scientific notation: 2.132123952 × 1010
Factors of 21321239520
Divisors of 21321239520
- Number of divisors d(n): 384
-
Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 16 17 20 21 24 28 30 31 32 34 35 40 42 48 51 56 60 62 68 70 80 84 85 93 96 102 105 112 119 120 124 136 140 155 160 168 170 186 204 210 217 224 238 240 248 255 272 280 310 336 340 357 372 408 420 434 465 476 480 496 510 527 544 560 595 620 651 672 680 714 744 816 840 868 930 952 992 1020 1054 1085 1120 1190 1240 1302 1360 1428 1488 1581 1632 1680 1736 1785 1860 1904 2040 2108 2170 2380 2480 2604 2635 2720 2856 2976 3162 3255 3360 3472 3570 3689 3720 3808 4080 4216 4340 4760 4960 5208 5270 5712 6324 6510 6944 7140 7378 7440 7905 8160 8432 8680 9520 10416 10540 11067 11424 12041 12648 13020 14280 14756 14880 15810 16864 17360 18445 19040 20832 21080 22134 24082 25296 26040 28560 29512 31620 34720 36123 36890 42160 44268 48164 50592 52080 55335 57120 59024 60205 63240 72246 73780 84287 84320 88536 96328 104160 110670 118048 120410 126480 144492 147560 168574 177072 180615 192656 204697 221340 240820 252861 252960 288984 295120 337148 354144 361230 373271 385312 409394 421435 442680 481640 505722 577968 590240 614091 674296 722460 746542 818788 842870 885360 963280 1011444 1023485 1119813 1155936 1228182 1264305 1348592 1432879 1444920 1493084 1637576 1685740 1770720 1866355 1926560 2022888 2046970 2239626 2456364 2528610 2612897 2697184 2865758 2889840 2986168 3070455 3275152 3371480 3732710 4045776 4093940 4298637 4479252 4912728 5057220 5225794 5599065 5731516 5779680 5972336 6140910 6345607 6550304 6742960 7164395 7465420 7838691 8091552 8187880 8597274 8958504 9825456 10114440 10451588 11198130 11463032 11944672 12281820 12691214 13064485 13485920 14328790 14930840 15677382 16375760 17194548 17917008 19036821 19650912 20228880 20903176 21493185 22396260 22926064 24563640 25382428 26128970 28657580 29861680 31354764 31728035 32751520 34389096 35834016 38073642 39193455 40457760 41806352 42986370 44419249 44792520 45852128 49127280 50764856 52257940 57315160 59723360 62709528 63456070 68778192 76147284 78386910 83612704 85972740 88838498 89585040 95184105 98254560 101529712 104515880 114630320 125419056 126912140 133257747 137556384 152294568 156773820 171945480 177676996 179170080 190368210 203059424 209031760 222096245 229260640 250838112 253824280 266515494 304589136 313547640 343890960 355353992 380736420 418063520 444192490 507648560 533030988 609178272 627095280 666288735 687781920 710707984 761472840 888384980 1015297120 1066061976 1254190560 1332577470 1421415968 1522945680 1776769960 2132123952 2665154940 3045891360 3553539920 4264247904 5330309880 7107079840 10660619760 21321239520
- Sum of all divisors σ(n): 83900178432
- Sum of proper divisors (its aliquot sum) s(n): 62578938912
- 21321239520 is an abundant number, because the sum of its proper divisors (62578938912) is greater than itself. Its abundance is 41257699392
Bases of 21321239520
- Binary: 100111101101101100001001011111000002
- Hexadecimal: 0x4F6D84BE0
- Base-36: 9SM45PC
Squares and roots of 21321239520
- 21321239520 squared (213212395202) is 454595254669209830400
- 21321239520 cubed (213212395203) is 9692534309457621163096977408000
-
The
square root of 21321239520 is 146017.9424591375 -
The
cube root of 21321239520 is 2772.9209119729
Scales and comparisons
How big is 21321239520?- 21,321,239,520 seconds is equal to 677 years, 49 weeks, 2 days, 14 hours, 32 minutes.
-
To count from 1 to 21,321,239,520 would take you about one thousand, three hundred fifty-five 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 21321239520 cubic inches would be around 231.1 feet tall.
Recreational maths with 21321239520
- 21321239520 backwards is 02593212312
- 21321239520 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21321239520's digits is 30
- More coming soon!
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