21394513152

Names of 21394513152

• Cardinal: 21394513152 can be written as Twenty-one billion, three hundred ninety-four million, five hundred thirteen thousand, one hundred fifty-two.

Scientific notation

• Scientific notation: 2.1394513152 × 10¹⁰

Factors of 21394513152

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 834

Divisors of 21394513152

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 19 23 24 27 32 36 38 46 48 54 57 64 69 72 76 81 92 96 108 114 128 138 144 152 162 171 184 192 207 216 228 243 256 276 288 304 324 342 368 384 414 432 437 456 486 513 552 576 608 621 648 684 736 768 787 828 864 874 912 972 1026 1104 1152 1216 1242 1296 1311 1368 1472 1539 1574 1656 1728 1748 1824 1863 1944 2052 2208 2304 2361 2432 2484 2592 2622 2736 2944 3078 3148 3312 3456 3496 3648 3726 3888 3933 4104 4416 4617 4722 4864 4968 5184 5244 5472 5589 5888 6156 6296 6624 6912 6992 7083 7296 7452 7776 7866 8208 8832 9234 9444 9936 10368 10488 10944 11178 11799 12312 12592 13248 13984 14166 14592 14904 14953 15552 15732 16416 17664 18101 18468 18888 19872 20736 20976 21249 21888 22356 23598 24624 25184 26496 27968 28332 29808 29906 31104 31464 32832 35397 36202 36936 37776 39744 41952 42498 43776 44712 44859 47196 49248 50368 52992 54303 55936 56664 59616 59812 62208 62928 63747 65664 70794 72404 73872 75552 79488 83904 84996 89424 89718 94392 98496 100736 106191 108606 111872 113328 119232 119624 125856 127494 131328 134577 141588 144808 147744 151104 158976 162909 167808 169992 178848 179436 188784 191241 196992 201472 212382 217212 226656 238464 239248 251712 254988 269154 283176 289616 295488 302208 325818 335616 339984 343919 357696 358872 377568 382482 393984 403731 424764 434424 453312 476928 478496 488727 503424 509976 538308 566352 579232 590976 604416 651636 679968 687838 715392 717744 755136 764964 807462 849528 868848 906624 956992 977454 1006848 1019952 1031757 1076616 1132704 1158464 1181952 1211193 1303272 1359936 1375676 1430784 1435488 1466181 1510272 1529928 1614924 1699056 1737696 1813248 1913984 1954908 2039904 2063514 2153232 2265408 2316928 2422386 2606544 2719872 2751352 2870976 2932362 3020544 3059856 3095271 3229848 3398112 3475392 3633579 3827968 3909816 4079808 4127028 4306464 4398543 4530816 4633856 4844772 5213088 5439744 5502704 5741952 5864724 6119712 6190542 6459696 6796224 6950784 7267158 7819632 8159616 8254056 8612928 8797086 9061632 9285813 9689544 10426176 11005408 11483904 11729448 12239424 12381084 12919392 13592448 13901568 14534316 15639264 16319232 16508112 17225856 17594172 18571626 19379088 20852352 22010816 23458896 24478848 24762168 25838784 27184896 27857439 29068632 31278528 33016224 34451712 35188344 37143252 38758176 41704704 44021632 46917792 48957696 49524336 51677568 55714878 58137264 62557056 66032448 70376688 74286504 77516352 83572317 88043264 93835584 99048672 103355136 111429756 116274528 125114112 132064896 140753376 148573008 155032704 167144634 187671168 198097344 222859512 232549056 264129792 281506752 297146016 310065408 334289268 375342336 396194688 445719024 465098112 563013504 594292032 668578536 792389376 891438048 930196224 1126027008 1188584064 1337157072 1782876096 2377168128 2674314144 3565752192 5348628288 7131504384 10697256576 21394513152
• Sum of all divisors σ(n): 70354152960
• Sum of proper divisors (its aliquot sum) s(n): 48959639808
• 21394513152 is an abundant number, because the sum of its proper divisors (48959639808) is greater than itself. Its abundance is 27565126656

Bases of 21394513152

• Binary: 10011111011001101100101110100000000₂
• Hexadecimal: 0x4FB365D00
• Base-36: 9TTQO00

Squares and roots of 21394513152

• 21394513152 squared (21394513152²) is 457725193011100975104
• 21394513152 cubed (21394513152³) is 9792807661877738293862552567808
• The square root of 21394513152 is 146268.6335206561
• The cube root of 21394513152 is 2776.0937993425

Scales and comparisons

• 21,394,513,152 seconds is equal to 680 years, 14 weeks, 3 days, 16 hours, 19 minutes, 12 seconds.
• To count from 1 to 21,394,513,152 would take you about one thousand, three hundred sixty 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 21394513152 cubic inches would be around 231.3 feet tall.

Recreational maths with 21394513152

• 21394513152 backwards is 25131549312
• 21394513152 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21394513152's digits is 36
• More coming soon!