21457152990
21,457,152,990 is an even composite number composed of eight prime numbers multiplied together.
21457152990 is an even composite number. It is composed of eight distinct prime numbers multiplied together. It has a total of five hundred twelve divisors.
Prime factorization of 21457152990:
2 × 33 × 5 × 7 × 13 × 17 × 47 × 1093
(2 × 3 × 3 × 3 × 5 × 7 × 13 × 17 × 47 × 1093)See below for interesting mathematical facts about the number 21457152990 from the Numbermatics database.
Names of 21457152990
- Cardinal: 21457152990 can be written as Twenty-one billion, four hundred fifty-seven million, one hundred fifty-two thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 2.145715299 × 1010
Factors of 21457152990
Divisors of 21457152990
- Number of divisors d(n): 512
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Complete list of divisors:
1 2 3 5 6 7 9 10 13 14 15 17 18 21 26 27 30 34 35 39 42 45 47 51 54 63 65 70 78 85 90 91 94 102 105 117 119 126 130 135 141 153 170 182 189 195 210 221 234 235 238 255 270 273 282 306 315 329 351 357 378 390 423 442 455 459 470 510 546 585 595 611 630 658 663 702 705 714 765 799 819 846 910 918 945 987 1071 1093 1105 1170 1190 1222 1269 1326 1365 1410 1530 1547 1598 1638 1645 1755 1785 1833 1890 1974 1989 2115 2142 2186 2210 2295 2397 2457 2538 2730 2961 3055 3094 3213 3279 3290 3315 3510 3570 3666 3978 3995 4095 4230 4277 4590 4641 4794 4914 4935 5355 5465 5499 5593 5922 5967 6110 6345 6426 6558 6630 7191 7651 7735 7990 8190 8554 8883 9165 9282 9837 9870 9945 10387 10710 10930 10998 11186 11934 11985 12285 12690 12831 13923 14209 14382 14805 15302 15470 16065 16395 16497 16779 17766 18330 18581 19674 19890 20774 21385 21573 22953 23205 23970 24570 25662 27495 27846 27965 28418 29511 29610 29835 31161 32130 32790 32994 33558 35955 37162 38255 38493 41769 42627 42770 43146 44415 45906 46410 49185 50337 51371 51935 54990 55743 55930 59022 59670 62322 64155 68859 69615 71045 71910 72709 76510 76986 82485 83538 83895 85254 88830 92905 93483 98370 99463 100674 102742 103870 107865 111486 114765 115479 127881 128310 130067 137718 139230 142090 145418 147555 151011 154113 155805 164970 167229 167790 185810 186966 192465 198926 206577 208845 213135 215730 218127 229530 230958 241553 251685 255762 256855 260134 278715 280449 295110 298389 302022 308226 311610 334458 344295 359597 363545 383643 384930 390201 413154 417690 426270 436254 462339 467415 483106 497315 501687 503370 513710 557430 560898 577395 596778 639405 650335 654381 667823 688590 719194 724659 727090 755055 767286 770565 780402 836145 873307 895167 924678 934830 994630 1003374 1032885 1078791 1090635 1154790 1170603 1207765 1278810 1300670 1308762 1335646 1387017 1402245 1449318 1491945 1510110 1541130 1672290 1690871 1746614 1790334 1797985 1918215 1951005 1963143 2003469 2065770 2157582 2173977 2181270 2311695 2341206 2415530 2508435 2619921 2685501 2774034 2804490 2983890 3236373 3271905 3339115 3381742 3511809 3595970 3623295 3836430 3902010 3926286 4006938 4347954 4366535 4475835 4623390 4674761 5016870 5072613 5239842 5371002 5393955 5853015 6010407 6113149 6472746 6521931 6543810 6678230 6935085 7023618 7246590 7859763 8454355 8733070 8951670 9349522 9709119 9815715 10017345 10145226 10787910 10869885 11352991 11706030 12020814 12226298 13043862 13099605 13427505 13870170 14024283 15217839 15719526 16181865 16908710 17559045 18031221 18339447 19418238 19631430 20034690 21739770 22705982 23373805 23579289 25363065 26199210 26855010 28048566 30052035 30435678 30565745 32363730 32609655 34058973 35118090 36062442 36678894 39298815 42072849 45653517 46747610 47158578 48545595 50726130 55018341 56764955 60104070 61131490 65219310 68117946 70121415 76089195 78597630 79470937 84145698 90156105 91307034 91697235 97091190 102176919 110036682 113529910 117896445 126218547 140242830 152178390 158941874 165055023 170294865 180312210 183394470 204353838 210364245 228267585 235792890 238412811 252437094 275091705 306530757 330110046 340589730 397354685 420728490 456535170 476825622 510884595 550183410 613061514 631092735 715238433 794709370 825275115 1021769190 1192064055 1262185470 1430476866 1532653785 1650550230 2145715299 2384128110 3065307570 3576192165 4291430598 7152384330 10728576495 21457152990
- Sum of all divisors σ(n): 76222218240
- Sum of proper divisors (its aliquot sum) s(n): 54765065250
- 21457152990 is an abundant number, because the sum of its proper divisors (54765065250) is greater than itself. Its abundance is 33307912260
Bases of 21457152990
- Binary: 100111111101111001000101011110111102
- Hexadecimal: 0x4FEF22BDE
- Base-36: 9UV197I
Squares and roots of 21457152990
- 21457152990 squared (214571529902) is 460409414436265940100
- 21457152990 cubed (214571529903) is 9879075243595272881051875899000
-
The
square root of 21457152990 is 146482.6030284825 -
The
cube root of 21457152990 is 2778.8004844391
Scales and comparisons
How big is 21457152990?- 21,457,152,990 seconds is equal to 682 years, 14 weeks, 16 hours, 16 minutes, 30 seconds.
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To count from 1 to 21,457,152,990 would take you about one thousand, three hundred sixty-four 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 21457152990 cubic inches would be around 231.6 feet tall.
Recreational maths with 21457152990
- 21457152990 backwards is 09925175412
- 21457152990 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21457152990's digits is 45
- More coming soon!
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