31445630720

Names of 31445630720

• Cardinal: 31445630720 can be written as Thirty-one billion, four hundred forty-five million, six hundred thirty thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 3.144563072 × 10¹⁰

Factors of 31445630720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 484

Divisors of 31445630720

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 97 112 128 140 160 194 224 256 280 320 373 388 448 485 560 640 679 746 776 896 970 1120 1280 1358 1492 1552 1792 1865 1940 2240 2611 2716 2984 3104 3395 3730 3880 4480 5222 5432 5968 6208 6790 7460 7760 8960 9409 10444 10864 11936 12416 13055 13580 14920 15520 18818 20888 21728 23872 24832 26110 27160 29840 31040 36181 37636 41776 43456 47045 47744 52220 54320 59680 62080 65863 72362 75272 83552 86912 94090 95488 104440 108640 119360 124160 131726 144724 150544 167104 173824 180905 188180 208880 217280 238720 253267 263452 289448 301088 329315 334208 361810 376360 417760 434560 477440 506534 526904 578896 602176 658630 668416 723620 752720 835520 869120 1013068 1053808 1157792 1204352 1266335 1317260 1447240 1505440 1671040 2026136 2107616 2315584 2408704 2532670 2634520 2894480 3010880 3342080 3509557 4052272 4215232 4631168 5065340 5269040 5788960 6021760 7019114 8104544 8430464 9262336 10130680 10538080 11577920 12043520 14038228 16209088 16860928 17547785 20261360 21076160 23155840 24566899 28076456 32418176 35095570 40522720 42152320 46311680 49133798 56152912 64836352 70191140 81045440 84304640 98267596 112305824 122834495 140382280 162090880 196535192 224611648 245668990 280764560 324181760 393070384 449223296 491337980 561529120 786140768 898446592 982675960 1123058240 1572281536 1965351920 2246116480 3144563072 3930703840 4492232960 6289126144 7861407680 15722815360 31445630720
• Sum of all divisors σ(n): 87212198304
• Sum of proper divisors (its aliquot sum) s(n): 55766567584
• 31445630720 is an abundant number, because the sum of its proper divisors (55766567584) is greater than itself. Its abundance is 24320936864

Bases of 31445630720

• Binary: 11101010010010011100011111100000000₂
• Hexadecimal: 0x7524E3F00
• Base-36: EG1WZY8

Squares and roots of 31445630720

• 31445630720 squared (31445630720²) is 988827691378607718400
• 31445630720 cubed (31445630720³) is 31094310428801826020548149248000
• The square root of 31445630720 is 177329.1592491207
• The cube root of 31445630720 is 3156.3617369611

Scales and comparisons

• 31,445,630,720 seconds is equal to 999 years, 45 weeks, 3 days, 1 hour, 25 minutes, 20 seconds.
• To count from 1 to 31,445,630,720 would take you about one thousand, nine hundred ninety-nine 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 31445630720 cubic inches would be around 263 feet tall.

Recreational maths with 31445630720

• 31445630720 backwards is 02703654413
• 31445630720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31445630720's digits is 35
• More coming soon!