129979922720

Names of 129979922720

• Cardinal: 129979922720 can be written as One hundred twenty-nine billion, nine hundred seventy-nine million, nine hundred twenty-two thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.2997992272 × 10¹¹

Factors of 129979922720

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 325

Divisors of 129979922720

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 80 137 160 181 274 362 548 685 724 905 1096 1370 1448 1810 2192 2740 2896 3620 4384 5480 5792 7240 10960 14480 21920 24797 28960 32761 49594 65522 99188 123985 131044 163805 198376 247970 262088 327610 396752 495940 524176 655220 793504 991880 1048352 1310440 1983760 2620880 3967520 4488257 5241760 5929741 8976514 11859482 17953028 22441285 23718964 29648705 35906056 44882570 47437928 59297410 71812112 89765140 94875856 118594820 143624224 179530280 189751712 237189640 359060560 474379280 718121120 812374517 948758560 1624749034 3249498068 4061872585 6498996136 8123745170 12997992272 16247490340 25995984544 32494980680 64989961360 129979922720
• Sum of all divisors σ(n): 311037448176
• Sum of proper divisors (its aliquot sum) s(n): 181057525456
• 129979922720 is an abundant number, because the sum of its proper divisors (181057525456) is greater than itself. Its abundance is 51077602736

Bases of 129979922720

• Binary: 1111001000011011010000011100100100000₂
• Hexadecimal: 0x1E43683920
• Base-36: 1NPMOU8W

Squares and roots of 129979922720

• 129979922720 squared (129979922720²) is 16894780310297172198400
• 129979922720 cubed (129979922720³) is 2195982239103804062582564507648000
• The square root of 129979922720 is 360527.2842934359
• The cube root of 129979922720 is 5065.5362174047

Scales and comparisons

• 129,979,922,720 seconds is equal to 4,132 years, 49 weeks, 6 days, 6 hours, 5 minutes, 20 seconds.
• To count from 1 to 129,979,922,720 would take you about eight thousand, two hundred sixty-five 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 129979922720 cubic inches would be around 422.1 feet tall.

Recreational maths with 129979922720

• 129979922720 backwards is 027229979921
• The number of decimal digits it has is: 12
• The sum of 129979922720's digits is 59
• More coming soon!