40402557

Names of 40402557

• Cardinal: 40402557 can be written as Forty million, four hundred two thousand, five hundred fifty-seven.

Scientific notation

• Scientific notation: 4.0402557 × 10⁷

Factors of 40402557

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 131

Divisors of 40402557

• Number of divisors d(n): 80
• Complete list of divisors:
  1 3 9 13 17 27 37 39 51 61 81 111 117 153 183 221 333 351 459 481 549 629 663 793 999 1037 1053 1377 1443 1647 1887 1989 2257 2379 2997 3111 4329 4941 5661 5967 6771 7137 8177 9333 12987 13481 16983 17901 20313 21411 24531 27999 29341 38369 38961 40443 50949 60939 64233 73593 83997 88023 115107 121329 182817 220779 264069 345321 363987 498797 662337 792207 1035963 1091961 1496391 2376621 3107889 4489173 13467519 40402557
• Sum of all divisors σ(n): 71839152
• Sum of proper divisors (its aliquot sum) s(n): 31436595
• 40402557 is a deficient number, because the sum of its proper divisors (31436595) is less than itself. Its deficiency is 8965962

Bases of 40402557

• Binary: 10011010000111111001111101₂
• Hexadecimal: 0x2687E7D
• Base-36: O1YT9

Squares and roots of 40402557

• 40402557 squared (40402557²) is 1632366612138249
• 40402557 cubed (40402557³) is 65951785091812497102693
• The square root of 40402557 is 6356.3005750201
• The cube root of 40402557 is 343.1386333381

Scales and comparisons

• 40,402,557 seconds is equal to 1 year, 14 weeks, 5 days, 14 hours, 55 minutes, 57 seconds.
• To count from 1 to 40,402,557 would take you about forty-eight weeks!

  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 40402557 cubic inches would be around 28.6 feet tall.

Recreational maths with 40402557

• 40402557 backwards is 75520404
• 40402557 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 40402557's digits is 27
• More coming soon!