64140984

Names of 64140984

• Cardinal: 64140984 can be written as Sixty-four million, one hundred forty thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 6.4140984 × 10⁷

Factors of 64140984

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 139

Divisors of 64140984

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 31 36 54 62 72 81 93 103 108 124 162 186 206 216 248 279 309 324 372 412 558 618 648 744 824 837 927 961 1116 1236 1674 1854 1922 2232 2472 2511 2781 2883 3193 3348 3708 3844 5022 5562 5766 6386 6696 7416 7688 8343 8649 9579 10044 11124 11532 12772 16686 17298 19158 20088 22248 23064 25544 25947 28737 33372 34596 38316 51894 57474 66744 69192 76632 77841 86211 98983 103788 114948 155682 172422 197966 207576 229896 258633 296949 311364 344844 395932 517266 593898 622728 689688 791864 890847 1034532 1187796 1781694 2069064 2375592 2672541 3563388 5345082 7126776 8017623 10690164 16035246 21380328 32070492 64140984
• Sum of all divisors σ(n): 187438680
• Sum of proper divisors (its aliquot sum) s(n): 123297696
• 64140984 is an abundant number, because the sum of its proper divisors (123297696) is greater than itself. Its abundance is 59156712

Bases of 64140984

• Binary: 11110100101011011010111000₂
• Hexadecimal: 0x3D2B6B8
• Base-36: 126RI0

Squares and roots of 64140984

• 64140984 squared (64140984²) is 4114065828488256
• 64140984 cubed (64140984³) is 263880230480011972283904
• The square root of 64140984 is 8008.8066526793
• The cube root of 64140984 is 400.2935012565

Scales and comparisons

• 64,140,984 seconds is equal to 2 years, 2 weeks, 8 hours, 56 minutes, 24 seconds.
• To count from 1 to 64,140,984 would take you about 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 64140984 cubic inches would be around 33.4 feet tall.

Recreational maths with 64140984

• 64140984 backwards is 48904146
• 64140984 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 64140984's digits is 36
• More coming soon!