129379988880

Names of 129379988880

• Cardinal: 129379988880 can be written as One hundred twenty-nine billion, three hundred seventy-nine million, nine hundred eighty-eight thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 1.2937998888 × 10¹¹

Factors of 129379988880

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 38626

Divisors of 129379988880

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 90 108 120 135 144 180 216 240 270 360 432 540 720 1080 1619 2160 3238 4857 6476 8095 9714 12952 14571 16190 19428 24285 25904 29142 32380 36997 38856 43713 48570 58284 64760 72855 73994 77712 87426 97140 110991 116568 129520 145710 147988 174852 184985 194280 218565 221982 233136 291420 295976 332973 349704 369970 388560 437130 443964 554955 582840 591952 665946 699408 739940 874260 887928 998919 1109910 1165680 1331892 1479880 1664865 1748520 1775856 1997838 2219820 2663784 2959760 3329730 3497040 3995676 4439640 4994595 5327568 6659460 7991352 8879280 9989190 13318920 15982704 19978380 26637840 39956760 59898143 79913520 119796286 179694429 239592572 299490715 359388858 479185144 539083287 598981430 718777716 898472145 958370288 1078166574 1197962860 1437555432 1617249861 1796944290 2156333148 2395925720 2695416435 2875110864 3234499722 3593888580 4312666296 4791851440 5390832870 6468999444 7187777160 8086249305 8625332592 10781665740 12937998888 14375554320 16172498610 21563331480 25875997776 32344997220 43126662960 64689994440 129379988880
• Sum of all divisors σ(n): 445929494400
• Sum of proper divisors (its aliquot sum) s(n): 316549505520
• 129379988880 is an abundant number, because the sum of its proper divisors (316549505520) is greater than itself. Its abundance is 187169516640

Bases of 129379988880

• Binary: 1111000011111101001011111010110010000₂
• Hexadecimal: 0x1E1FA5F590
• Base-36: 1NFPI6C0

Squares and roots of 129379988880

• 129379988880 squared (129379988880²) is 16739181522588923654400
• 129379988880 cubed (129379988880³) is 2165715119252856411217440963072000
• The square root of 129379988880 is 359694.2992041993
• The cube root of 129379988880 is 5057.7307191205

Scales and comparisons

• 129,379,988,880 seconds is equal to 4,113 years, 45 weeks, 6 days, 13 hours, 48 minutes.
• To count from 1 to 129,379,988,880 would take you about eight thousand, two hundred twenty-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 129379988880 cubic inches would be around 421.5 feet tall.

Recreational maths with 129379988880

• 129379988880 backwards is 088889973921
• 129379988880 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 129379988880's digits is 72
• More coming soon!