28138797360

Names of 28138797360

• Cardinal: 28138797360 can be written as Twenty-eight billion, one hundred thirty-eight million, seven hundred ninety-seven thousand, three hundred sixty.

Scientific notation

• Scientific notation: 2.813879736 × 10¹⁰

Factors of 28138797360

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 460

Divisors of 28138797360

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 61 72 80 81 90 108 120 122 135 144 162 180 183 216 240 243 244 270 305 324 360 366 389 405 432 486 488 540 549 610 648 720 732 778 810 915 972 976 1080 1098 1167 1215 1220 1296 1464 1556 1620 1647 1830 1944 1945 2160 2196 2334 2430 2440 2745 2928 3112 3240 3294 3501 3660 3721 3888 3890 4392 4668 4860 4880 4941 5490 5835 6224 6480 6588 7002 7320 7442 7780 8235 8784 9336 9720 9882 10503 10980 11163 11670 13176 14004 14640 14823 14884 15560 16470 17505 18605 18672 19440 19764 21006 21960 22326 23340 23729 24705 26352 28008 29646 29768 31120 31509 32940 33489 35010 37210 39528 42012 43920 44652 46680 47458 49410 52515 55815 56016 59292 59536 63018 65880 66978 70020 71187 74115 74420 79056 84024 89304 93360 94527 94916 98820 100467 105030 111630 118584 118645 126036 131760 133956 140040 142374 148230 148840 157545 167445 168048 178608 189054 189832 197640 200934 210060 213561 223260 237168 237290 252072 267912 280080 284748 296460 297680 301401 315090 334890 355935 378108 379664 395280 401868 420120 427122 446520 472635 474580 502335 504144 535824 569496 592920 602802 630180 640683 669780 711870 756216 803736 840240 854244 893040 904203 945270 949160 1004670 1067805 1138992 1185840 1205604 1260360 1281366 1339560 1423740 1447469 1507005 1512432 1607472 1708488 1808406 1890540 1898320 1922049 2009340 2135610 2411208 2520720 2562732 2679120 2847480 2894938 3014010 3203415 3416976 3616812 3781080 3844098 4018680 4271220 4342407 4521015 4822416 5125464 5694960 5766147 5789876 6028020 6406830 7233624 7237345 7562160 7688196 8037360 8542440 8684814 9042030 9610245 10250928 11532294 11579752 12056040 12813660 13027221 14467248 14474690 15376392 17084880 17369628 18084060 19220490 21712035 23064588 23159504 24112080 25627320 26054442 28830735 28949380 30752784 34739256 36168120 38440980 39081663 43424070 46129176 51254640 52108884 57661470 57898760 65136105 69478512 72336240 76881960 78163326 86848140 92258352 104217768 115322940 115797520 117244989 130272210 153763920 156326652 173696280 195408315 208435536 230645880 234489978 260544420 312653304 347392560 351734967 390816630 461291760 468979956 521088840 586224945 625306608 703469934 781633260 937959912 1042177680 1172449890 1406939868 1563266520 1758674835 1875919824 2344899780 2813879736 3126533040 3517349670 4689799560 5627759472 7034699340 9379599120 14069398680 28138797360
• Sum of all divisors σ(n): 99888450480
• Sum of proper divisors (its aliquot sum) s(n): 71749653120
• 28138797360 is an abundant number, because the sum of its proper divisors (71749653120) is greater than itself. Its abundance is 43610855760

Bases of 28138797360

• Binary: 11010001101001100111111100100110000₂
• Hexadecimal: 0x68D33F930
• Base-36: CXD4300

Squares and roots of 28138797360

• 28138797360 squared (28138797360²) is 791791916867142969600
• 28138797360 cubed (28138797360³) is 22280072300010502063723040256000
• The square root of 28138797360 is 167746.2290485243
• The cube root of 28138797360 is 3041.5982102999

Scales and comparisons

• 28,138,797,360 seconds is equal to 894 years, 37 weeks, 5 days, 12 hours, 36 minutes.
• To count from 1 to 28,138,797,360 would take you about one thousand, seven hundred eighty-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 28138797360 cubic inches would be around 253.5 feet tall.

Recreational maths with 28138797360

• 28138797360 backwards is 06379783182
• 28138797360 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28138797360's digits is 54
• More coming soon!