16721390390

Names of 16721390390

• Cardinal: 16721390390 can be written as Sixteen billion, seven hundred twenty-one million, three hundred ninety thousand, three hundred ninety.

Scientific notation

• Scientific notation: 1.672139039 × 10¹⁰

Factors of 16721390390

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 116

Divisors of 16721390390

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 5 10 31 37 41 62 74 82 155 185 205 310 370 410 961 1147 1271 1369 1517 1922 2294 2542 2738 3034 4805 5735 6355 6845 7585 9610 11470 12710 13690 15170 29791 35557 39401 42439 47027 56129 59582 71114 78802 84878 94054 112258 148955 177785 197005 212195 235135 280645 297910 355570 394010 424390 470270 561290 1102267 1221431 1315609 1457837 1739999 2204534 2442862 2631218 2915674 3479998 5511335 6107155 6578045 7289185 8699995 11022670 12214310 13156090 14578370 17399990 40783879 45192947 53939969 81567758 90385894 107879938 203919395 225964735 269699845 407838790 451929470 539399690 1672139039 3344278078 8360695195 16721390390
• Sum of all divisors σ(n): 32744694528
• Sum of proper divisors (its aliquot sum) s(n): 16023304138
• 16721390390 is a deficient number, because the sum of its proper divisors (16023304138) is less than itself. Its deficiency is 698086252

Bases of 16721390390

• Binary: 1111100100101011000010101100110110₂
• Hexadecimal: 0x3E4AC2B36
• Base-36: 7OJHFEE

Squares and roots of 16721390390

• 16721390390 squared (16721390390²) is 279604896574784352100
• 16721390390 cubed (16721390390³) is 4675382630582542981527316319000
• The square root of 16721390390 is 129311.2152521969
• The cube root of 16721390390 is 2557.1574074307

Scales and comparisons

• 16,721,390,390 seconds is equal to 531 years, 35 weeks, 5 days, 14 hours, 39 minutes, 50 seconds.
• To count from 1 to 16,721,390,390 would take you about one thousand and sixty-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 16721390390 cubic inches would be around 213.1 feet tall.

Recreational maths with 16721390390

• 16721390390 backwards is 09309312761
• 16721390390 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 16721390390's digits is 41
• More coming soon!