129769937920

Names of 129769937920

• Cardinal: 129769937920 can be written as One hundred twenty-nine billion, seven hundred sixty-nine million, nine hundred thirty-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.2976993792 × 10¹¹

Factors of 129769937920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 30458

Divisors of 129769937920

• Number of divisors d(n): 264
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 17 20 28 32 34 35 40 49 56 64 68 70 80 85 98 112 119 128 136 140 160 170 196 224 238 245 256 272 280 320 340 392 448 476 490 512 544 560 595 640 680 784 833 896 952 980 1024 1088 1120 1190 1280 1360 1568 1666 1792 1904 1960 2176 2240 2380 2560 2720 3136 3332 3584 3808 3920 4165 4352 4480 4760 5120 5440 6272 6664 7168 7616 7840 8330 8704 8960 9520 10880 12544 13328 15232 15680 16660 17408 17920 19040 21760 25088 26656 30427 30464 31360 33320 35840 38080 43520 50176 53312 60854 60928 62720 66640 76160 87040 106624 121708 121856 125440 133280 152135 152320 212989 213248 243416 250880 266560 304270 304640 425978 426496 486832 517259 533120 608540 609280 851956 852992 973664 1034518 1064945 1066240 1217080 1490923 1703912 1947328 2069036 2129890 2132480 2434160 2586295 2981846 3407824 3620813 3894656 4138072 4259780 4264960 4868320 5172590 5963692 6815648 7241626 7454615 7789312 8276144 8519560 9736640 10345180 11927384 13631296 14483252 14909230 15578624 16552288 17039120 18104065 19473280 20690360 23854768 25345691 27262592 28966504 29818460 31157248 33104576 34078240 36208130 38946560 41380720 47709536 50691382 54525184 57933008 59636920 66209152 68156480 72416260 77893120 82761440 95419072 101382764 109050368 115866016 119273840 126728455 132418304 136312960 144832520 155786240 165522880 190838144 202765528 218100736 231732032 238547680 253456910 264836608 272625920 289665040 331045760 381676288 405531056 463464064 477095360 506913820 529673216 545251840 579330080 662091520 763352576 811062112 926928128 954190720 1013827640 1090503680 1158660160 1324183040 1526705152 1622124224 1853856256 1908381440 2027655280 2317320320 2648366080 3244248448 3707712512 3816762880 4055310560 4634640640 6488496896 7633525760 8110621120 9269281280 12976993792 16221242240 18538562560 25953987584 32442484480 64884968960 129769937920
• Sum of all divisors σ(n): 383433330096
• Sum of proper divisors (its aliquot sum) s(n): 253663392176
• 129769937920 is an abundant number, because the sum of its proper divisors (253663392176) is greater than itself. Its abundance is 123893454256

Bases of 129769937920

• Binary: 1111000110110111001000001110000000000₂
• Hexadecimal: 0x1E36E41C00
• Base-36: 1NM5O4XS

Squares and roots of 129769937920

• 129769937920 squared (129769937920²) is 16840236787760653926400
• 129769937920 cubed (129769937920³) is 2185356482505800275847532249088000
• The square root of 129769937920 is 360235.9475677017
• The cube root of 129769937920 is 5062.8069268529

Scales and comparisons

• 129,769,937,920 seconds is equal to 4,126 years, 14 weeks, 4 days, 20 hours, 58 minutes, 40 seconds.
• To count from 1 to 129,769,937,920 would take you about eight thousand, two hundred fifty-two 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 129769937920 cubic inches would be around 421.9 feet tall.

Recreational maths with 129769937920

• 129769937920 backwards is 029739967921
• 129769937920 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 129769937920's digits is 64
• More coming soon!