161396040

Names of 161396040

• Cardinal: 161396040 can be written as One hundred sixty-one million, three hundred ninety-six thousand and forty.

Scientific notation

• Scientific notation: 1.6139604 × 10⁸

Factors of 161396040

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 667

Divisors of 161396040

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 156 195 260 307 312 337 390 520 614 674 780 921 1011 1228 1348 1535 1560 1685 1842 2022 2456 2696 3070 3370 3684 3991 4044 4381 4605 5055 6140 6740 7368 7982 8088 8762 9210 10110 11973 12280 13143 13480 15964 17524 18420 19955 20220 21905 23946 26286 31928 35048 36840 39910 40440 43810 47892 52572 59865 65715 79820 87620 95784 103459 105144 119730 131430 159640 175240 206918 239460 262860 310377 413836 478920 517295 525720 620754 827672 1034590 1241508 1344967 1551885 2069180 2483016 2689934 3103770 4034901 4138360 5379868 6207540 6724835 8069802 10759736 12415080 13449670 16139604 20174505 26899340 32279208 40349010 53798680 80698020 161396040
• Sum of all divisors σ(n): 524684160
• Sum of proper divisors (its aliquot sum) s(n): 363288120
• 161396040 is an abundant number, because the sum of its proper divisors (363288120) is greater than itself. Its abundance is 201892080

Bases of 161396040

• Binary: 1001100111101011010101001000₂
• Hexadecimal: 0x99EB548
• Base-36: 2O39ZC

Squares and roots of 161396040

• 161396040 squared (161396040²) is 26048681727681600
• 161396040 cubed (161396040³) is 4204154078068168620864000
• The square root of 161396040 is 12704.1741171947
• The cube root of 161396040 is 544.4578847469

Scales and comparisons

• 161,396,040 seconds is equal to 5 years, 6 weeks, 6 days, 14 minutes.
• To count from 1 to 161,396,040 would take you about seven 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 161396040 cubic inches would be around 45.4 feet tall.

Recreational maths with 161396040

• 161396040 backwards is 040693161
• 161396040 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 161396040's digits is 30
• More coming soon!