39945764768

Names of 39945764768

• Cardinal: 39945764768 can be written as Thirty-nine billion, nine hundred forty-five million, seven hundred sixty-four thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 3.9945764768 × 10¹⁰

Factors of 39945764768

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 157

Divisors of 39945764768

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 4 7 8 13 14 16 19 26 28 32 37 38 52 56 74 76 79 91 104 112 133 148 152 158 169 182 208 224 247 259 266 296 304 316 338 361 364 416 481 494 518 532 553 592 608 632 676 703 722 728 962 988 1027 1036 1064 1106 1183 1184 1264 1352 1406 1444 1456 1501 1729 1924 1976 2054 2072 2128 2212 2366 2527 2528 2704 2812 2888 2912 2923 3002 3211 3367 3458 3848 3952 4108 4144 4256 4424 4693 4732 4921 5054 5408 5624 5776 5846 6004 6253 6422 6734 6916 7189 7696 7904 8216 8288 8848 9139 9386 9464 9842 10108 10507 11248 11552 11692 12008 12506 12844 13351 13357 13468 13832 14378 15392 16432 17696 18278 18772 18928 19513 19684 20216 20461 21014 22477 22496 23384 24016 25012 25688 26702 26714 26936 27664 28519 28756 32851 32864 36556 37544 37856 37999 39026 39368 40432 40922 42028 43771 44954 46768 48032 50024 51376 53404 53428 53872 55328 55537 57038 57512 61009 63973 65702 73112 75088 75998 78052 78736 80864 81844 84056 87542 89908 93457 93499 93536 100048 102752 106808 106856 107744 111074 114076 115024 118807 122018 127946 131404 136591 146224 150176 151996 156104 157472 163688 168112 173641 175084 179816 186914 186998 199633 200096 213616 213712 222148 228152 230048 237614 244036 253669 255892 262808 265993 273182 292448 303992 312208 327376 336224 347282 350168 359632 370747 373828 373996 388759 399266 427063 427232 427424 444296 456304 475228 488072 493987 507338 511784 525616 531986 546364 607984 624416 654752 694564 700336 719264 721981 741494 747656 747992 777518 798532 831649 854126 888592 912608 950456 976144 987974 1014676 1023568 1051232 1055203 1063972 1092728 1215487 1215968 1389128 1400672 1443962 1482988 1495312 1495984 1555036 1597064 1663298 1708252 1775683 1777184 1900912 1952288 1975948 2029352 2047136 2110406 2127944 2185456 2257333 2430974 2595229 2778256 2887924 2965976 2990624 2991968 3110072 3194128 3326596 3416504 3457909 3551366 3801824 3951896 4058704 4220812 4255888 4370912 4514666 4819711 4861948 5053867 5190458 5556512 5775848 5931952 6220144 6388256 6653192 6833008 6915818 7102732 7386421 7903792 8117408 8441624 8511776 9029332 9385753 9639422 9723896 10107734 10380916 11551696 11863904 12440288 13306384 13666016 13717639 13831636 14205464 14772842 15801331 15807584 16883248 18058664 18771506 19278844 19447792 20215468 20761832 23103392 26612768 27435278 27663272 28410928 29545684 31602662 33737977 33766496 36117328 37543012 38557688 38895584 40430936 41523664 54870556 55326544 56821856 59091368 63205324 65700271 67475954 72234656 75086024 77115376 80861872 83047328 96023473 109741112 110653088 118182736 126410648 131400542 134951908 150172048 154230752 161723744 178329307 192046946 219482224 236365472 252821296 262801084 269903816 300344096 356658614 384093892 438964448 505642592 525602168 539807632 713317228 768187784 1051204336 1079615264 1248305149 1426634456 1536375568 2102408672 2496610298 2853268912 3072751136 4993220596 5706537824 9986441192 19972882384 39945764768
• Sum of all divisors σ(n): 106826791680
• Sum of proper divisors (its aliquot sum) s(n): 66881026912
• 39945764768 is an abundant number, because the sum of its proper divisors (66881026912) is greater than itself. Its abundance is 26935262144

Bases of 39945764768

• Binary: 100101001100111100111111111110100000₂
• Hexadecimal: 0x94CF3FFA0
• Base-36: ICMODCW

Squares and roots of 39945764768

• 39945764768 squared (39945764768²) is 1595664122900390093824
• 39945764768 cubed (39945764768³) is 63740023702116024583330953592832
• The square root of 39945764768 is 199864.3659284967
• The cube root of 39945764768 is 3418.4055118699

Scales and comparisons

• 39,945,764,768 seconds is equal to 1,270 years, 7 weeks, 6 days, 5 hours, 46 minutes, 8 seconds.
• To count from 1 to 39,945,764,768 would take you about two thousand, five hundred forty 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 39945764768 cubic inches would be around 284.9 feet tall.

Recreational maths with 39945764768

• 39945764768 backwards is 86746754993
• The number of decimal digits it has is: 11
• The sum of 39945764768's digits is 68
• More coming soon!