21354028440
21,354,028,440 is an even composite number composed of seven prime numbers multiplied together.
21354028440 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 21354028440:
23 × 3 × 5 × 17 × 61 × 157 × 1093
(2 × 2 × 2 × 3 × 5 × 17 × 61 × 157 × 1093)See below for interesting mathematical facts about the number 21354028440 from the Numbermatics database.
Names of 21354028440
- Cardinal: 21354028440 can be written as Twenty-one billion, three hundred fifty-four million, twenty-eight thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.135402844 × 1010
Factors of 21354028440
Divisors of 21354028440
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 17 20 24 30 34 40 51 60 61 68 85 102 120 122 136 157 170 183 204 244 255 305 314 340 366 408 471 488 510 610 628 680 732 785 915 942 1020 1037 1093 1220 1256 1464 1570 1830 1884 2040 2074 2186 2355 2440 2669 3111 3140 3279 3660 3768 4148 4372 4710 5185 5338 5465 6222 6280 6558 7320 8007 8296 8744 9420 9577 10370 10676 10930 12444 13116 13345 15555 16014 16395 18581 18840 19154 20740 21352 21860 24888 26232 26690 28731 31110 32028 32790 37162 38308 40035 41480 43720 47885 53380 55743 57462 62220 64056 65580 66673 74324 76616 80070 92905 95770 106760 111486 114924 124440 131160 133346 143655 148648 160140 162809 171601 185810 191540 200019 222972 229848 266692 278715 287310 320280 325618 333365 343202 371620 383080 400038 445944 488427 514803 533384 557430 574620 651236 666730 686404 743240 800076 814045 858005 976854 1000095 1029606 1114860 1133441 1149240 1302472 1333460 1372808 1600152 1628090 1716010 1953708 2000190 2059212 2229720 2266882 2442135 2574015 2666920 2917217 3256180 3400323 3432020 3907416 4000380 4118424 4533764 4884270 5148030 5667205 5834434 6512360 6800646 6864040 8000760 8751651 9067528 9768540 10296060 10467661 11334410 11668868 13601292 14586085 17001615 17503302 19537080 20592120 20935322 22668820 23337736 27202584 29172170 31402983 34003230 35006604 41870644 43758255 45337640 52338305 58344340 62805966 68006460 70013208 83741288 87516510 104676610 116688680 125611932 136012920 157014915 175033020 177950237 209353220 251223864 314029830 350066040 355900474 418706440 533850711 628059660 711800948 889751185 1067701422 1256119320 1423601896 1779502370 2135402844 2669253555 3559004740 4270805688 5338507110 7118009480 10677014220 21354028440
- Sum of all divisors σ(n): 69445019520
- Sum of proper divisors (its aliquot sum) s(n): 48090991080
- 21354028440 is an abundant number, because the sum of its proper divisors (48090991080) is greater than itself. Its abundance is 26736962640
Bases of 21354028440
- Binary: 100111110001100110010011101100110002
- Hexadecimal: 0x4F8CC9D98
- Base-36: 9T5MXSO
Squares and roots of 21354028440
- 21354028440 squared (213540284402) is 455994530616328833600
- 21354028440 cubed (213540284403) is 9737320175265536641086427584000
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The
square root of 21354028440 is 146130.1763497191 -
The
cube root of 21354028440 is 2774.3416316563
Scales and comparisons
How big is 21354028440?- 21,354,028,440 seconds is equal to 678 years, 51 weeks, 4 days, 2 hours, 34 minutes.
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To count from 1 to 21,354,028,440 would take you about one thousand, three hundred fifty-seven 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 21354028440 cubic inches would be around 231.2 feet tall.
Recreational maths with 21354028440
- 21354028440 backwards is 04482045312
- The number of decimal digits it has is: 11
- The sum of 21354028440's digits is 33
- More coming soon!
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