38728304640

Names of 38728304640

• Cardinal: 38728304640 can be written as Thirty-eight billion, seven hundred twenty-eight million, three hundred four thousand, six hundred forty.

Scientific notation

• Scientific notation: 3.872830464 × 10¹⁰

Factors of 38728304640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 154

Divisors of 38728304640

• Number of divisors d(n): 432
• 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 61 64 72 80 83 90 96 120 122 128 144 160 166 180 183 192 240 244 249 256 288 305 320 332 360 366 384 415 480 488 498 512 549 576 610 640 664 720 732 747 768 830 915 960 976 996 1024 1098 1152 1220 1245 1280 1328 1440 1464 1494 1536 1660 1830 1920 1952 1992 2048 2196 2304 2440 2490 2560 2656 2745 2880 2928 2988 3072 3320 3660 3735 3840 3904 3984 4392 4608 4880 4980 5063 5120 5312 5490 5760 5856 5976 6144 6640 6889 7320 7470 7680 7808 7968 8784 9216 9760 9960 10126 10240 10624 10980 11520 11712 11952 13280 13778 14640 14940 15189 15360 15616 15936 17568 18432 19520 19920 20252 20667 21248 21960 23040 23424 23904 25315 26560 27556 29280 29880 30378 30720 31232 31872 34445 35136 39040 39840 40504 41334 42496 43920 45567 46080 46848 47808 50630 53120 55112 58560 59760 60756 62001 62464 63744 68890 70272 75945 78080 79680 81008 82668 84992 87840 91134 92160 93696 95616 101260 103335 106240 110224 117120 119520 121512 124002 124928 127488 137780 140544 151890 156160 159360 162016 165336 169984 175680 182268 187392 191232 202520 206670 212480 220448 227835 234240 239040 243024 248004 254976 275560 281088 303780 310005 312320 318720 324032 330672 351360 364536 374784 382464 405040 413340 420229 424960 440896 455670 468480 478080 486048 496008 509952 551120 562176 607560 620010 624640 637440 648064 661344 702720 729072 764928 810080 826680 840458 849920 881792 911340 936960 956160 972096 992016 1102240 1124352 1215120 1240020 1260687 1274880 1296128 1322688 1405440 1458144 1529856 1620160 1653360 1680916 1763584 1822680 1873920 1912320 1944192 1984032 2101145 2204480 2430240 2480040 2521374 2549760 2592256 2645376 2810880 2916288 3240320 3306720 3361832 3527168 3645360 3782061 3824640 3888384 3968064 4202290 4408960 4860480 4960080 5042748 5184512 5290752 5621760 5832576 6303435 6480640 6613440 6723664 7054336 7290720 7564122 7649280 7776768 7936128 8404580 8817920 9720960 9920160 10085496 10369024 10581504 11665152 12606870 12961280 13226880 13447328 14108672 14581440 15128244 15553536 15872256 16809160 17635840 18910305 19441920 19840320 20170992 21163008 23330304 25213740 25922560 26453760 26894656 29162880 30256488 31107072 31744512 33618320 35271680 37820610 38883840 39680640 40341984 42326016 46660608 50427480 51845120 52907520 53789312 58325760 60512976 63489024 67236640 70543360 75641220 77767680 79361280 80683968 93321216 100854960 105815040 107578624 116651520 121025952 126978048 134473280 151282440 155535360 158722560 161367936 201709920 211630080 215157248 233303040 242051904 268946560 302564880 317445120 322735872 403419840 430314496 466606080 484103808 537893120 605129760 634890240 645471744 806839680 860628992 968207616 1075786240 1210259520 1290943488 1613679360 1936415232 2151572480 2420519040 2581886976 3227358720 3872830464 4303144960 4841038080 6454717440 7745660928 9682076160 12909434880 19364152320 38728304640
• Sum of all divisors σ(n): 138089247660
• Sum of proper divisors (its aliquot sum) s(n): 99360943020
• 38728304640 is an abundant number, because the sum of its proper divisors (99360943020) is greater than itself. Its abundance is 60632638380

Bases of 38728304640

• Binary: 100100000100011000110000100000000000₂
• Hexadecimal: 0x904630800
• Base-36: HSHTZ40

Squares and roots of 38728304640

• 38728304640 squared (38728304640²) is 1499881580288645529600
• 38728304640 cubed (38728304640³) is 58087870765343283203322937344000
• The square root of 38728304640 is 196795.0828654009
• The cube root of 38728304640 is 3383.3180726067

Scales and comparisons

• 38,728,304,640 seconds is equal to 1,231 years, 22 weeks, 6 days, 6 hours, 24 minutes.
• To count from 1 to 38,728,304,640 would take you about two thousand, four hundred sixty-two 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 38728304640 cubic inches would be around 281.9 feet tall.

Recreational maths with 38728304640

• 38728304640 backwards is 04640382783
• 38728304640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 38728304640's digits is 45
• More coming soon!