221213520

Names of 221213520

• Cardinal: 221213520 can be written as Two hundred twenty-one million, two hundred thirteen thousand, five hundred twenty.

Scientific notation

• Scientific notation: 2.2121352 × 10⁸

Factors of 221213520

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 122

Divisors of 221213520

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 17 18 20 22 24 30 31 33 34 36 40 44 45 48 51 53 55 60 62 66 68 72 80 85 88 90 93 99 102 106 110 120 124 132 136 144 153 155 159 165 170 176 180 186 187 198 204 212 220 240 248 255 264 265 272 279 306 310 318 330 340 341 360 372 374 396 408 424 440 465 477 495 496 510 527 528 530 558 561 583 612 620 636 660 680 682 720 744 748 765 792 795 816 848 880 901 930 935 954 990 1020 1023 1054 1060 1116 1122 1166 1224 1240 1272 1320 1360 1364 1395 1488 1496 1530 1581 1584 1590 1643 1683 1705 1749 1802 1860 1870 1908 1980 2040 2046 2108 2120 2232 2244 2332 2385 2448 2480 2544 2635 2640 2703 2728 2790 2805 2915 2992 3060 3069 3162 3180 3286 3366 3410 3498 3604 3720 3740 3816 3960 4080 4092 4216 4240 4464 4488 4505 4664 4743 4770 4929 5115 5247 5270 5406 5456 5580 5610 5797 5830 6120 6138 6324 6360 6572 6732 6820 6996 7208 7440 7480 7632 7905 7920 8109 8184 8215 8415 8432 8745 8976 9010 9328 9486 9540 9858 9911 10230 10494 10540 10812 11160 11220 11594 11660 12240 12276 12648 12720 13144 13464 13515 13640 13992 14416 14787 14960 15345 15810 16218 16368 16430 16830 17391 17490 18020 18073 18972 19080 19716 19822 20460 20988 21080 21624 22320 22440 23188 23320 23715 24552 24645 25296 26235 26288 26928 27030 27280 27931 27984 28985 29574 29733 30690 31620 32436 32860 33660 34782 34980 36040 36146 37944 38160 39432 39644 40545 40920 41976 42160 43248 44880 46376 46640 47430 49104 49290 49555 52173 52470 54060 54219 55862 57970 59148 59466 61380 63240 64872 65720 67320 69564 69960 72080 72292 73935 75888 78864 79288 81090 81840 83793 83952 86955 89199 90365 92752 94860 98580 99110 104346 104940 108120 108438 111724 115940 118296 118932 122760 126480 129744 131440 134640 139128 139655 139920 144584 147870 148665 158576 162180 162657 167586 173910 178398 180730 189720 197160 198220 208692 209880 216240 216876 223448 231880 236592 237864 245520 251379 260865 271095 278256 279310 289168 295740 297330 307241 324360 325314 335172 347820 356796 361460 379440 394320 396440 417384 418965 419760 433752 445995 446896 463760 475728 502758 521730 542190 558620 591480 594660 614482 648720 650628 670344 695640 713592 722920 792880 813285 834768 837930 867504 891990 921723 1005516 1043460 1084380 1117240 1182960 1189320 1228964 1256895 1301256 1340688 1391280 1427184 1445840 1536205 1626570 1675860 1783980 1843446 2011032 2086920 2168760 2234480 2378640 2457928 2513790 2602512 2765169 3072410 3253140 3351720 3567960 3686892 4022064 4173840 4337520 4608615 4915856 5027580 5530338 6144820 6506280 6703440 7135920 7373784 9217230 10055160 11060676 12289640 13012560 13825845 14747568 18434460 20110320 22121352 24579280 27651690 36868920 44242704 55303380 73737840 110606760 221213520
• Sum of all divisors σ(n): 902513664
• Sum of proper divisors (its aliquot sum) s(n): 681300144
• 221213520 is an abundant number, because the sum of its proper divisors (681300144) is greater than itself. Its abundance is 460086624

Bases of 221213520

• Binary: 1101001011110111001101010000₂
• Hexadecimal: 0xD2F7350
• Base-36: 3NPDG0

Squares and roots of 221213520

• 221213520 squared (221213520²) is 48935421430790400
• 221213520 cubed (221213520³) is 10825176827388580766208000
• The square root of 221213520 is 14873.2484683071
• The cube root of 221213520 is 604.7890073167

Scales and comparisons

• 221,213,520 seconds is equal to 7 years, 1 week, 5 days, 8 hours, 12 minutes.
• To count from 1 to 221,213,520 would take you about ten 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 221213520 cubic inches would be around 50.4 feet tall.

Recreational maths with 221213520

• 221213520 backwards is 025312122
• 221213520 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 221213520's digits is 18
• More coming soon!