399985710515755

Names of 399985710515755

• Cardinal: 399985710515755 can be written as Three hundred ninety-nine trillion, nine hundred eighty-five billion, seven hundred ten million, five hundred fifteen thousand, seven hundred fifty-five.

Scientific notation

• Scientific notation: 3.99985710515755 × 10¹⁴

Factors of 399985710515755

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 23566285

Divisors of 399985710515755

• Number of divisors d(n): 72
• Complete list of divisors:
  1 5 7 13 35 49 65 73 91 245 365 455 511 637 949 2555 3185 3577 4745 5329 6643 17885 26645 33215 37303 46501 69277 186515 232505 261121 346385 484939 1305605 2424695 3394573 16972865 23566187 117830935 164963309 306360431 824816545 1154743163 1531802155 1720331651 2144523017 5773715815 8601658255 10722615085 12042321557 15011661119 22364311463 60211607785 75058305595 84296250899 111821557315 125584210523 156550180241 421481254495 627921052615 782750901205 879089473661 1095851261687 1632594736799 4395447368305 5479256308435 6153626315627 8162973683995 11428163157593 30768131578135 57140815787965 79997142103151 399985710515755
• Sum of all divisors σ(n): 609647008702032
• Sum of proper divisors (its aliquot sum) s(n): 209661298186277
• 399985710515755 is a deficient number, because the sum of its proper divisors (209661298186277) is less than itself. Its deficiency is 190324412329478

Bases of 399985710515755

• Binary: 1011010111100100011101110001100001100011000101011₂
• Hexadecimal: 0x16BC8EE30C62B
• Base-36: 3XS6WCPS17

Squares and roots of 399985710515755

• 399985710515755 squared (399985710515755²) is 159988568616793359988103220025
• 399985710515755 cubed (399985710515755³) is 63993141292586714225081317395650018993993875
• The square root of 399985710515755 is 19999642.7597033593
• The cube root of 399985710515755 is 73679.7525805255

Scales and comparisons

• 399,985,710,515,755 seconds is equal to 12,718,308 years, 18 weeks, 4 days, 1 hour, 55 minutes, 55 seconds.
• To count from 1 to 399,985,710,515,755 would take you about thirty-one million, seven hundred ninety-five thousand, seven hundred seventy 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 399985710515755 cubic inches would be around 6140 feet tall.

Recreational maths with 399985710515755

• 399985710515755 backwards is 557515017589993
• The number of decimal digits it has is: 15
• The sum of 399985710515755's digits is 79
• More coming soon!