12642145920

Names of 12642145920

• Cardinal: 12642145920 can be written as Twelve billion, six hundred forty-two million, one hundred forty-five thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.264214592 × 10¹⁰

Factors of 12642145920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 3532

Divisors of 12642145920

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 288 320 360 384 480 576 640 720 809 960 1152 1440 1618 1920 2427 2713 2880 3236 4045 4854 5426 5760 6472 7281 8090 8139 9708 10852 12135 12944 13565 14562 16180 16278 19416 21704 24270 24417 25888 27130 29124 32360 32556 36405 38832 40695 43408 48540 48834 51776 54260 58248 64720 65112 72810 77664 81390 86816 97080 97668 103552 108520 116496 122085 129440 130224 145620 155328 162780 173632 194160 195336 217040 232992 244170 258880 260448 291240 310656 325560 347264 388320 390672 434080 465984 488340 517760 520896 582480 651120 776640 781344 868160 931968 976680 1041792 1164960 1302240 1553280 1562688 1736320 1953360 2194817 2329920 2604480 3125376 3906720 4389634 4659840 5208960 6584451 7813440 8779268 10974085 13168902 15626880 17558536 19753353 21948170 26337804 32922255 35117072 39506706 43896340 52675608 65844510 70234144 79013412 87792680 98766765 105351216 131689020 140468288 158026824 175585360 197533530 210702432 263378040 280936576 316053648 351170720 395067060 421404864 526756080 632107296 702341440 790134120 842809728 1053512160 1264214592 1404682880 1580268240 2107024320 2528429184 3160536480 4214048640 6321072960 12642145920
• Sum of all divisors σ(n): 43724982600
• Sum of proper divisors (its aliquot sum) s(n): 31082836680
• 12642145920 is an abundant number, because the sum of its proper divisors (31082836680) is greater than itself. Its abundance is 18440690760

Bases of 12642145920

• Binary: 1011110001100001111101011010000000₂
• Hexadecimal: 0x2F187D680
• Base-36: 5T2T280

Squares and roots of 12642145920

• 12642145920 squared (12642145920²) is 159823853462572646400
• 12642145920 cubed (12642145920³) is 2020516476970540654389362688000
• The square root of 12642145920 is 112437.2977263325
• The cube root of 12642145920 is 2329.5583854847

Scales and comparisons

• 12,642,145,920 seconds is equal to 401 years, 51 weeks, 3 hours, 12 minutes.
• To count from 1 to 12,642,145,920 would take you about eight hundred three 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 12642145920 cubic inches would be around 194.1 feet tall.

Recreational maths with 12642145920

• 12642145920 backwards is 02954124621
• 12642145920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12642145920's digits is 36
• More coming soon!