161297140240

Names of 161297140240

• Cardinal: 161297140240 can be written as One hundred sixty-one billion, two hundred ninety-seven million, one hundred forty thousand, two hundred forty.

Scientific notation

• Scientific notation: 1.6129714024 × 10¹¹

Factors of 161297140240

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 685

Divisors of 161297140240

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 16 20 40 80 157 314 521 628 785 1042 1256 1570 2084 2512 2605 3140 4168 5210 6280 8336 10420 12560 20840 24649 41680 49298 81797 98596 123245 163594 197192 246490 327188 394384 408985 492980 654376 817970 985960 1308752 1635940 1971920 3271880 3869893 6543760 7739786 12842129 15479572 19349465 25684258 30959144 38698930 51368516 61918288 64210645 77397860 102737032 128421290 154795720 205474064 256842580 309591440 513685160 1027370320 2016214253 4032428506 8064857012 10081071265 16129714024 20162142530 32259428048 40324285060 80648570120 161297140240
• Sum of all divisors σ(n): 378144212400
• Sum of proper divisors (its aliquot sum) s(n): 216847072160
• 161297140240 is an abundant number, because the sum of its proper divisors (216847072160) is greater than itself. Its abundance is 55549931920

Bases of 161297140240

• Binary: 10010110001110000011110000101000010000₂
• Hexadecimal: 0x258E0F0A10
• Base-36: 223K5HXS

Squares and roots of 161297140240

• 161297140240 squared (161297140240²) is 26016767449602227257600
• 161297140240 cubed (161297140240³) is 4196430187909957582185457805824000
• The square root of 161297140240 is 401618.1522790025
• The cube root of 161297140240 is 5443.4665162425

Scales and comparisons

• 161,297,140,240 seconds is equal to 5,128 years, 39 weeks, 1 hour, 10 minutes, 40 seconds.
• To count from 1 to 161,297,140,240 would take you about ten thousand, two hundred fifty-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 161297140240 cubic inches would be around 453.6 feet tall.

Recreational maths with 161297140240

• 161297140240 backwards is 042041792161
• The number of decimal digits it has is: 12
• The sum of 161297140240's digits is 37
• More coming soon!