1621168164

Names of 1621168164

• Cardinal: 1621168164 can be written as One billion, six hundred twenty-one million, one hundred sixty-eight thousand, one hundred sixty-four.

Scientific notation

• Scientific notation: 1.621168164 × 10⁹

Factors of 1621168164

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 775

Divisors of 1621168164

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 7 9 11 12 14 18 21 22 28 33 36 42 44 63 66 77 79 84 99 121 126 132 154 158 198 231 237 242 252 308 316 363 396 462 474 484 553 673 693 711 726 847 869 924 948 1089 1106 1346 1386 1422 1452 1659 1694 1738 2019 2178 2212 2541 2607 2692 2772 2844 3318 3388 3476 4038 4356 4711 4977 5082 5214 6057 6083 6636 7403 7623 7821 8076 9422 9559 9954 10164 10428 12114 12166 14133 14806 15246 15642 18249 18844 19118 19908 22209 24228 24332 28266 28677 29612 30492 31284 36498 38236 42399 44418 51821 53167 54747 56532 57354 66627 66913 72996 81433 84798 86031 88836 103642 106334 109494 114708 133254 133826 155463 159501 162866 169596 172062 200739 207284 212668 218988 244299 266508 267652 310926 319002 325732 344124 372169 401478 466389 478503 488598 570031 584837 602217 621852 638004 732897 744338 802956 932778 957006 977196 1116507 1140062 1169674 1204434 1465794 1488676 1710093 1754511 1865556 1914012 2233014 2280124 2339348 2408868 2931588 3349521 3420186 3509022 4093859 4466028 5130279 5263533 6433207 6699042 6840372 7018044 8187718 10260558 10527066 12281577 12866414 13398084 16375436 19299621 20521116 21054132 24563154 25732828 36844731 38599242 45032449 49126308 57898863 73689462 77198484 90064898 115797726 135097347 147378924 180129796 231595452 270194694 405292041 540389388 810584082 1621168164
• Sum of all divisors σ(n): 5220750080
• Sum of proper divisors (its aliquot sum) s(n): 3599581916
• 1621168164 is an abundant number, because the sum of its proper divisors (3599581916) is greater than itself. Its abundance is 1978413752

Bases of 1621168164

• Binary: 1100000101000010001000000100100₂
• Hexadecimal: 0x60A11024
• Base-36: QT79D0

Squares and roots of 1621168164

• 1621168164 squared (1621168164²) is 2628186215967130896
• 1621168164 cubed (1621168164³) is 4260731822389541079015994944
• The square root of 1621168164 is 40263.7326138549
• The cube root of 1621168164 is 1174.7425212799

Scales and comparisons

• 1,621,168,164 seconds is equal to 51 years, 28 weeks, 3 days, 12 hours, 29 minutes, 24 seconds.
• To count from 1 to 1,621,168,164 would take you about one hundred three 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 1621168164 cubic inches would be around 97.9 feet tall.

Recreational maths with 1621168164

• 1621168164 backwards is 4618611261
• 1621168164 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1621168164's digits is 36
• More coming soon!