21123956736
21,123,956,736 is an even composite number composed of four prime numbers multiplied together.
21123956736 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21123956736:
217 × 33 × 47 × 127
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 47 × 127)See below for interesting mathematical facts about the number 21123956736 from the Numbermatics database.
Names of 21123956736
- Cardinal: 21123956736 can be written as Twenty-one billion, one hundred twenty-three million, nine hundred fifty-six thousand, seven hundred thirty-six.
Scientific notation
- Scientific notation: 2.1123956736 × 1010
Factors of 21123956736
Divisors of 21123956736
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 32 36 47 48 54 64 72 94 96 108 127 128 141 144 188 192 216 254 256 282 288 376 381 384 423 432 508 512 564 576 752 762 768 846 864 1016 1024 1128 1143 1152 1269 1504 1524 1536 1692 1728 2032 2048 2256 2286 2304 2538 3008 3048 3072 3384 3429 3456 4064 4096 4512 4572 4608 5076 5969 6016 6096 6144 6768 6858 6912 8128 8192 9024 9144 9216 10152 11938 12032 12192 12288 13536 13716 13824 16256 16384 17907 18048 18288 18432 20304 23876 24064 24384 24576 27072 27432 27648 32512 32768 35814 36096 36576 36864 40608 47752 48128 48768 49152 53721 54144 54864 55296 65024 65536 71628 72192 73152 73728 81216 95504 96256 97536 98304 107442 108288 109728 110592 130048 131072 143256 144384 146304 147456 161163 162432 191008 192512 195072 196608 214884 216576 219456 221184 260096 286512 288768 292608 294912 322326 324864 382016 385024 390144 393216 429768 433152 438912 442368 520192 573024 577536 585216 589824 644652 649728 764032 770048 780288 859536 866304 877824 884736 1040384 1146048 1155072 1170432 1179648 1289304 1299456 1528064 1540096 1560576 1719072 1732608 1755648 1769472 2080768 2292096 2310144 2340864 2578608 2598912 3056128 3080192 3121152 3438144 3465216 3511296 3538944 4161536 4584192 4620288 4681728 5157216 5197824 6112256 6160384 6242304 6876288 6930432 7022592 8323072 9168384 9240576 9363456 10314432 10395648 12224512 12484608 13752576 13860864 14045184 16646144 18336768 18481152 18726912 20628864 20791296 24449024 24969216 27505152 27721728 28090368 36673536 37453824 41257728 41582592 48898048 49938432 55010304 55443456 56180736 73347072 74907648 82515456 83165184 97796096 110020608 112361472 146694144 149815296 165030912 166330368 195592192 220041216 224722944 293388288 330061824 391184384 440082432 449445888 586776576 660123648 782368768 880164864 1173553152 1320247296 1760329728 2347106304 2640494592 3520659456 5280989184 7041318912 10561978368 21123956736
- Sum of all divisors σ(n): 64424263680
- Sum of proper divisors (its aliquot sum) s(n): 43300306944
- 21123956736 is an abundant number, because the sum of its proper divisors (43300306944) is greater than itself. Its abundance is 22176350208
Bases of 21123956736
- Binary: 100111010110001011000000000000000002
- Hexadecimal: 0x4EB160000
- Base-36: 9PCNPC0
Squares and roots of 21123956736
- 21123956736 squared (211239567362) is 446221548184399773696
- 21123956736 cubed (211239567363) is 9425964678518200169682494816256
-
The
square root of 21123956736 is 145340.8295559097 -
The
cube root of 21123956736 is 2764.3418994101
Scales and comparisons
How big is 21123956736?- 21,123,956,736 seconds is equal to 671 years, 35 weeks, 1 day, 5 hours, 45 minutes, 36 seconds.
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To count from 1 to 21,123,956,736 would take you about one thousand, three hundred 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 21123956736 cubic inches would be around 230.4 feet tall.
Recreational maths with 21123956736
- 21123956736 backwards is 63765932112
- The number of decimal digits it has is: 11
- The sum of 21123956736's digits is 45
- More coming soon!
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