31389949440

Names of 31389949440

• Cardinal: 31389949440 can be written as Thirty-one billion, three hundred eighty-nine million, nine hundred forty-nine thousand, four hundred forty.

Scientific notation

• Scientific notation: 3.138994944 × 10¹⁰

Factors of 31389949440

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 151389

Divisors of 31389949440

• Number of divisors d(n): 200
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 81 90 96 108 120 128 135 144 160 162 180 192 216 240 256 270 288 320 324 360 384 405 432 480 512 540 576 640 648 720 768 810 864 960 1080 1152 1280 1296 1440 1536 1620 1728 1920 2160 2304 2560 2592 2880 3240 3456 3840 4320 4608 5184 5760 6480 6912 7680 8640 10368 11520 12960 13824 17280 20736 23040 25920 34560 41472 51840 69120 103680 151379 207360 302758 454137 605516 756895 908274 1211032 1362411 1513790 1816548 2270685 2422064 2724822 3027580 3633096 4087233 4541370 4844128 5449644 6055160 6812055 7266192 8174466 9082740 9688256 10899288 12110320 12261699 13624110 14532384 16348932 18165480 19376512 20436165 21798576 24220640 24523398 27248220 29064768 32697864 36330960 38753024 40872330 43597152 48441280 49046796 54496440 58129536 61308495 65395728 72661920 77506048 81744660 87194304 96882560 98093592 108992880 116259072 122616990 130791456 145323840 163489320 174388608 193765120 196187184 217985760 232518144 245233980 261582912 290647680 326978640 348777216 387530240 392374368 435971520 490467960 523165824 581295360 653957280 697554432 784748736 871943040 980935920 1046331648 1162590720 1307914560 1569497472 1743886080 1961871840 2092663296 2615829120 3138994944 3487772160 3923743680 5231658240 6277989888 7847487360 10463316480 15694974720 31389949440
• Sum of all divisors σ(n): 112429623240
• Sum of proper divisors (its aliquot sum) s(n): 81039673800
• 31389949440 is an abundant number, because the sum of its proper divisors (81039673800) is greater than itself. Its abundance is 49649724360

Bases of 31389949440

• Binary: 11101001110111111001001111000000000₂
• Hexadecimal: 0x74EFC9E00
• Base-36: EF4RK00

Squares and roots of 31389949440

• 31389949440 squared (31389949440²) is 985328925845756313600
• 31389949440 cubed (31389949440³) is 30929425164067799922464784384000
• The square root of 31389949440 is 177172.0899013161
• The cube root of 31389949440 is 3154.4976295649

Scales and comparisons

• 31,389,949,440 seconds is equal to 998 years, 5 weeks, 2 days, 14 hours, 24 minutes.
• To count from 1 to 31,389,949,440 would take you about one thousand, nine hundred ninety-six 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 31389949440 cubic inches would be around 262.9 feet tall.

Recreational maths with 31389949440

• 31389949440 backwards is 04494998313
• 31389949440 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31389949440's digits is 54
• More coming soon!