21312381440
21,312,381,440 is an even composite number composed of six prime numbers multiplied together.
21312381440 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of four hundred eighty divisors.
Prime factorization of 21312381440:
29 × 5 × 72 × 23 × 83 × 89
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 7 × 23 × 83 × 89)See below for interesting mathematical facts about the number 21312381440 from the Numbermatics database.
Names of 21312381440
- Cardinal: 21312381440 can be written as Twenty-one billion, three hundred twelve million, three hundred eighty-one thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.131238144 × 1010
Factors of 21312381440
Divisors of 21312381440
- Number of divisors d(n): 480
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 23 28 32 35 40 46 49 56 64 70 80 83 89 92 98 112 115 128 140 160 161 166 178 184 196 224 230 245 256 280 320 322 332 356 368 392 415 445 448 460 490 512 560 581 623 640 644 664 712 736 784 805 830 890 896 920 980 1120 1127 1162 1246 1280 1288 1328 1424 1472 1568 1610 1660 1780 1792 1840 1909 1960 2047 2240 2254 2324 2492 2560 2576 2656 2848 2905 2944 3115 3136 3220 3320 3560 3584 3680 3818 3920 4067 4094 4361 4480 4508 4648 4984 5152 5312 5635 5696 5810 5888 6230 6272 6440 6640 7120 7360 7387 7636 7840 8134 8188 8722 8960 9016 9296 9545 9968 10235 10304 10624 11270 11392 11620 11776 12460 12544 12880 13280 13363 14240 14329 14720 14774 15272 15680 16268 16376 17444 17920 18032 18592 19090 19936 20335 20470 20608 21248 21805 22540 22784 23240 24920 25088 25760 26560 26726 28480 28658 29440 29548 30544 31360 32536 32752 34888 36064 36935 37184 38180 39872 40670 40940 41216 42496 43610 45080 45568 46480 49840 51520 51709 53120 53452 56960 57316 58880 59096 61088 62720 65072 65504 66815 69776 71645 72128 73870 74368 76360 79744 81340 81880 82432 87220 90160 92960 93541 99680 100303 103040 103418 106240 106904 113920 114632 118192 122176 125440 130144 131008 133630 139552 143290 144256 147740 148736 152720 159488 162680 163760 169901 174440 180320 185920 187082 199360 200606 206080 206836 212480 213808 227840 229264 236384 244352 258545 260288 262016 267260 279104 286580 288512 295480 297472 305440 318976 325360 327520 339802 348880 360640 361963 371840 374164 398720 401212 412160 413672 427616 458528 467705 472768 488704 501515 517090 520576 524032 534520 558208 573160 577024 590960 610880 650720 655040 679604 697760 721280 723926 743680 748328 797440 802424 827344 849505 855232 917056 935410 945536 977408 1003030 1034180 1041152 1048064 1069040 1116416 1146320 1181920 1189307 1221760 1301440 1310080 1359208 1395520 1442560 1447852 1487360 1496656 1594880 1604848 1654688 1699010 1710464 1809815 1834112 1870820 1891072 2006060 2068360 2082304 2138080 2232832 2292640 2363840 2378614 2443520 2602880 2620160 2718416 2791040 2885120 2895704 2993312 3209696 3309376 3398020 3420928 3619630 3668224 3741640 3782144 4012120 4136720 4276160 4585280 4727680 4757228 4887040 5205760 5240320 5436832 5582080 5791408 5946535 5986624 6419392 6618752 6796040 6841856 7239260 7336448 7483280 8024240 8273440 8325149 8552320 9170560 9455360 9514456 10411520 10873664 11164160 11582816 11893070 11973248 12838784 13237504 13592080 14478520 14966560 16048480 16546880 16650298 17104640 18341120 18910720 19028912 21747328 23165632 23786140 23946496 25677568 26475008 27184160 28957040 29933120 32096960 33093760 33300596 34209280 36682240 38057824 41625745 43494656 46331264 47572280 47892992 51355136 54368320 57914080 59866240 64193920 66187520 66601192 76115648 83251490 86989312 92662528 95144560 108736640 115828160 119732480 128387840 132375040 133202384 152231296 166502980 185325056 190289120 217473280 231656320 239464960 256775680 266404768 304462592 333005960 380578240 434946560 463312640 532809536 608925184 666011920 761156480 926625280 1065619072 1332023840 1522312960 2131238144 2664047680 3044625920 4262476288 5328095360 10656190720 21312381440
- Sum of all divisors σ(n): 63479687040
- Sum of proper divisors (its aliquot sum) s(n): 42167305600
- 21312381440 is an abundant number, because the sum of its proper divisors (42167305600) is greater than itself. Its abundance is 20854924160
Bases of 21312381440
- Binary: 100111101100101000100100010000000002
- Hexadecimal: 0x4F6512200
- Base-36: 9SGUARK
Squares and roots of 21312381440
- 21312381440 squared (213123814402) is 454217602644056473600
- 21312381440 cubed (213123814403) is 9680458804312484114264489984000
-
The
square root of 21312381440 is 145987.6071452641 -
The
cube root of 21312381440 is 2772.5368480347
Scales and comparisons
How big is 21312381440?- 21,312,381,440 seconds is equal to 677 years, 34 weeks, 5 days, 1 hour, 57 minutes, 20 seconds.
-
To count from 1 to 21,312,381,440 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 21312381440 cubic inches would be around 231 feet tall.
Recreational maths with 21312381440
- 21312381440 backwards is 04418321312
- The number of decimal digits it has is: 11
- The sum of 21312381440's digits is 29
- More coming soon!
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