421352820

Names of 421352820

• Cardinal: 421352820 can be written as Four hundred twenty-one million, three hundred fifty-two thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 4.2135282 × 10⁸

Factors of 421352820

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 196

Divisors of 421352820

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 17 18 20 21 27 28 30 34 35 36 42 45 51 54 60 63 68 70 79 83 84 85 90 102 105 108 119 126 135 140 153 158 166 170 180 189 204 210 237 238 249 252 255 270 306 315 316 332 340 357 378 395 415 420 459 474 476 498 510 540 553 581 595 612 630 711 714 747 756 765 790 830 918 945 948 996 1020 1071 1106 1162 1185 1190 1245 1260 1343 1411 1422 1428 1494 1530 1580 1659 1660 1743 1785 1836 1890 2133 2142 2212 2241 2295 2324 2370 2380 2490 2686 2765 2822 2844 2905 2988 3060 3213 3318 3486 3555 3570 3735 3780 4029 4233 4266 4284 4482 4590 4740 4977 4980 5229 5355 5372 5530 5644 5810 6426 6557 6636 6715 6972 7055 7110 7140 7470 8058 8295 8466 8532 8715 8964 9180 9401 9877 9954 10458 10665 10710 11060 11205 11620 12087 12699 12852 13114 13430 14110 14220 14931 14940 15687 16065 16116 16590 16932 17430 18802 19671 19754 19908 20145 20916 21165 21330 21420 22410 24174 24885 25398 26145 26228 26860 28203 28220 29631 29862 31374 32130 32785 33180 34860 36261 37604 38097 39342 39508 40290 42330 42660 44820 45899 47005 48348 49385 49770 50796 52290 56406 59013 59262 59724 60435 62748 63495 64260 65570 72522 74655 76194 78435 78684 80580 84609 84660 88893 91798 94010 98355 98770 99540 104580 111469 112812 118026 118524 120870 126990 131140 137697 141015 145044 148155 149310 152388 156870 169218 177039 177786 181305 183596 188020 190485 196710 197540 222938 229495 236052 241740 253827 253980 266679 275394 282030 295065 296310 298620 313740 334407 338436 354078 355572 362610 380970 393420 413091 423045 444465 445876 458990 507654 533358 550788 557345 564060 590130 592620 668814 688485 708156 725220 761940 780283 826182 846090 885195 888930 917980 1003221 1015308 1066716 1114690 1180260 1239273 1269135 1333395 1337628 1376970 1560566 1652364 1672035 1692180 1770390 1777860 2006442 2065455 2229380 2340849 2478546 2538270 2666790 2753940 3009663 3121132 3344070 3540780 3901415 4012884 4130910 4681698 4957092 5016105 5076540 5333580 6019326 6196365 6688140 7022547 7802830 8261820 9363396 10032210 11704245 12038652 12392730 14045094 15048315 15605660 20064420 21067641 23408490 24785460 28090188 30096630 35112735 42135282 46816980 60193260 70225470 84270564 105338205 140450940 210676410 421352820
• Sum of all divisors σ(n): 1625702400
• Sum of proper divisors (its aliquot sum) s(n): 1204349580
• 421352820 is an abundant number, because the sum of its proper divisors (1204349580) is greater than itself. Its abundance is 782996760

Bases of 421352820

• Binary: 11001000111010101010101110100₂
• Hexadecimal: 0x191D5574
• Base-36: 6YV1X0

Squares and roots of 421352820

• 421352820 squared (421352820²) is 177538198921952400
• 421352820 cubed (421352820³) is 74806220773485603645768000
• The square root of 421352820 is 20526.8804254325
• The cube root of 421352820 is 749.6904322413

Scales and comparisons

• 421,352,820 seconds is equal to 13 years, 20 weeks, 4 days, 18 hours, 27 minutes.
• To count from 1 to 421,352,820 would take you about twenty 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 421352820 cubic inches would be around 62.5 feet tall.

Recreational maths with 421352820

• 421352820 backwards is 028253124
• 421352820 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 421352820's digits is 27
• More coming soon!