1681789428

Names of 1681789428

• Cardinal: 1681789428 can be written as One billion, six hundred eighty-one million, seven hundred eighty-nine thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 1.681789428 × 10⁹

Factors of 1681789428

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 649

Divisors of 1681789428

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 9 11 12 18 22 33 36 44 53 66 99 106 132 159 198 212 227 318 353 396 454 477 583 636 681 706 908 954 1059 1166 1362 1412 1749 1908 2043 2118 2332 2497 2724 3177 3498 3883 4086 4236 4994 5247 6354 6996 7491 7766 8172 9988 10494 11649 12031 12708 14982 15532 18709 20988 22473 23298 24062 29964 34947 36093 37418 44946 46596 48124 56127 69894 72186 74836 80131 89892 108279 112254 132341 139788 144372 160262 168381 205799 216558 224508 240393 264682 320524 336762 397023 411598 433116 480786 529364 617397 673524 721179 794046 823196 881441 961572 1191069 1234794 1442358 1588092 1762882 1852191 2382138 2469588 2644323 2884716 3525764 3704382 4246943 4764276 5288646 7408764 7932969 8493886 10577292 12740829 15865938 16987772 25481658 31731876 38222487 46716373 50963316 76444974 93432746 140149119 152889948 186865492 280298238 420447357 560596476 840894714 1681789428
• Sum of all divisors σ(n): 4759425216
• Sum of proper divisors (its aliquot sum) s(n): 3077635788
• 1681789428 is an abundant number, because the sum of its proper divisors (3077635788) is greater than itself. Its abundance is 1395846360

Bases of 1681789428

• Binary: 1100100001111100001000111110100₂
• Hexadecimal: 0x643E11F4
• Base-36: RTAL10

Squares and roots of 1681789428

• 1681789428 squared (1681789428²) is 2828415680132567184
• 1681789428 cubed (1681789428³) is 4756799588836381128550930752
• The square root of 1681789428 is 41009.6260407237
• The cube root of 1681789428 is 1189.2063130233

Scales and comparisons

• 1,681,789,428 seconds is equal to 53 years, 24 weeks, 5 days, 3 hours, 43 minutes, 48 seconds.
• To count from 1 to 1,681,789,428 would take you about one hundred six 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 1681789428 cubic inches would be around 99.1 feet tall.

Recreational maths with 1681789428

• 1681789428 backwards is 8249871861
• The number of decimal digits it has is: 10
• The sum of 1681789428's digits is 54
• More coming soon!