12745920672

Names of 12745920672

• Cardinal: 12745920672 can be written as Twelve billion, seven hundred forty-five million, nine hundred twenty thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.2745920672 × 10¹⁰

Factors of 12745920672

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 460

Divisors of 12745920672

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 23 24 27 32 36 46 48 54 69 72 79 92 96 108 138 144 158 184 207 216 237 276 288 316 353 368 414 432 474 529 552 621 632 706 711 736 828 864 948 1058 1059 1104 1242 1264 1412 1422 1587 1656 1817 1896 2116 2118 2133 2208 2484 2528 2824 2844 3174 3177 3312 3634 3792 4232 4236 4266 4761 4968 5451 5648 5688 6348 6354 6624 7268 7584 8119 8464 8472 8532 9522 9531 9936 10902 11296 11376 12696 12708 14283 14536 16238 16353 16928 16944 17064 19044 19062 19872 21804 22752 24357 25392 25416 27887 28566 29072 32476 32706 33888 34128 38088 38124 41791 43608 48714 49059 50784 50832 55774 57132 58144 64952 65412 68256 73071 76176 76248 83582 83661 87216 97428 98118 101664 111548 114264 125373 129904 130824 146142 152352 152496 167164 167322 174432 186737 194856 196236 219213 223096 228528 250746 250983 259808 261648 292284 304992 334328 334644 373474 376119 389712 392472 438426 446192 457056 501492 501966 523296 560211 584568 641401 668656 669288 746948 752238 752949 779424 784944 876852 892384 1002984 1003932 1120422 1128357 1169136 1282802 1337312 1338576 1493896 1504476 1505898 1569888 1680633 1753704 1924203 2005968 2007864 2240844 2256714 2338272 2565604 2677152 2987792 3008952 3011796 3361266 3507408 3848406 4011936 4015728 4481688 4513428 5041899 5131208 5772609 5975584 6017904 6023592 6722532 7014816 7696812 8031456 8963376 9026856 10083798 10262416 11545218 12035808 12047184 13445064 14752223 15393624 17317827 17926752 18053712 20167596 20524832 23090436 24094368 26890128 29504446 30787248 34635654 36107424 40335192 44256669 46180872 53780256 59008892 61574496 69271308 80670384 88513338 92361744 118017784 132770007 138542616 161340768 177026676 184723488 236035568 265540014 277085232 354053352 398310021 472071136 531080028 554170464 708106704 796620042 1062160056 1416213408 1593240084 2124320112 3186480168 4248640224 6372960336 12745920672
• Sum of all divisors σ(n): 39465619200
• Sum of proper divisors (its aliquot sum) s(n): 26719698528
• 12745920672 is an abundant number, because the sum of its proper divisors (26719698528) is greater than itself. Its abundance is 13973777856

Bases of 12745920672

• Binary: 1011110111101101110101000010100000₂
• Hexadecimal: 0x2F7B750A0
• Base-36: 5USLBC0

Squares and roots of 12745920672

• 12745920672 squared (12745920672²) is 162458493776916931584
• 12745920672 cubed (12745920672³) is 2070683074173188874703315304448
• The square root of 12745920672 is 112897.8328932845
• The cube root of 12745920672 is 2335.9151877789

Scales and comparisons

• 12,745,920,672 seconds is equal to 405 years, 14 weeks, 4 days, 5 hours, 31 minutes, 12 seconds.
• To count from 1 to 12,745,920,672 would take you about eight hundred ten 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 12745920672 cubic inches would be around 194.7 feet tall.

Recreational maths with 12745920672

• 12745920672 backwards is 27602954721
• The number of decimal digits it has is: 11
• The sum of 12745920672's digits is 45
• More coming soon!