428415420

Names of 428415420

• Cardinal: 428415420 can be written as Four hundred twenty-eight million, four hundred fifteen thousand, four hundred twenty.

Scientific notation

• Scientific notation: 4.2841542 × 10⁸

Factors of 428415420

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 246

Divisors of 428415420

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 67 71 76 79 95 114 134 142 158 190 201 213 228 237 268 284 285 316 335 355 380 395 402 426 474 570 670 710 790 804 852 948 1005 1065 1140 1185 1273 1340 1349 1420 1501 1580 2010 2130 2370 2546 2698 3002 3819 4020 4047 4260 4503 4740 4757 5092 5293 5396 5609 6004 6365 6745 7505 7638 8094 9006 9514 10586 11218 12730 13490 14271 15010 15276 15879 16188 16827 18012 19028 19095 20235 21172 22436 22515 23785 25460 26465 26980 28045 28542 30020 31758 33654 38190 40470 45030 47570 52930 56090 57084 63516 67308 71355 76380 79395 80940 84135 90060 90383 95140 100567 105860 106571 112180 142710 158790 168270 180766 201134 213142 271149 285420 301701 317580 319713 336540 361532 375803 402268 426284 451915 502835 532855 542298 603402 639426 751606 903830 1005670 1065710 1084596 1127409 1206804 1278852 1355745 1503212 1508505 1598565 1807660 1879015 2011340 2131420 2254818 2711490 3017010 3197130 3758030 4509636 5422980 5637045 6034020 6394260 7140257 7516060 11274090 14280514 21420771 22548180 28561028 35701285 42841542 71402570 85683084 107103855 142805140 214207710 428415420
• Sum of all divisors σ(n): 1316044800
• Sum of proper divisors (its aliquot sum) s(n): 887629380
• 428415420 is an abundant number, because the sum of its proper divisors (887629380) is greater than itself. Its abundance is 459213960

Bases of 428415420

• Binary: 11001100010010001100110111100₂
• Hexadecimal: 0x198919BC
• Base-36: 732FGC

Squares and roots of 428415420

• 428415420 squared (428415420²) is 183539772093776400
• 428415420 cubed (428415420³) is 78631268548259495792088000
• The square root of 428415420 is 20698.1984723309
• The cube root of 428415420 is 753.8559460437

Scales and comparisons

• 428,415,420 seconds is equal to 13 years, 32 weeks, 2 days, 12 hours, 17 minutes.
• To count from 1 to 428,415,420 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 428415420 cubic inches would be around 62.8 feet tall.

Recreational maths with 428415420

• 428415420 backwards is 024514824
• 428415420 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 428415420's digits is 30
• More coming soon!