1388689920
1,388,689,920 is an even composite number composed of five prime numbers multiplied together.
1388689920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of four hundred divisors.
Prime factorization of 1388689920:
29 × 34 × 5 × 37 × 181
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 37 × 181)See below for interesting mathematical facts about the number 1388689920 from the Numbermatics database.
Names of 1388689920
- Cardinal: 1388689920 can be written as One billion, three hundred eighty-eight million, six hundred eighty-nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 1.38868992 × 109
Factors of 1388689920
Divisors of 1388689920
- Number of divisors d(n): 400
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 37 40 45 48 54 60 64 72 74 80 81 90 96 108 111 120 128 135 144 148 160 162 180 181 185 192 216 222 240 256 270 288 296 320 324 333 360 362 370 384 405 432 444 480 512 540 543 555 576 592 640 648 666 720 724 740 768 810 864 888 905 960 999 1080 1086 1110 1152 1184 1280 1296 1332 1440 1448 1480 1536 1620 1629 1665 1728 1776 1810 1920 1998 2160 2172 2220 2304 2368 2560 2592 2664 2715 2880 2896 2960 2997 3240 3258 3330 3456 3552 3620 3840 3996 4320 4344 4440 4608 4736 4887 4995 5184 5328 5430 5760 5792 5920 5994 6480 6516 6660 6697 6912 7104 7240 7680 7992 8145 8640 8688 8880 9472 9774 9990 10368 10656 10860 11520 11584 11840 11988 12960 13032 13320 13394 13824 14208 14480 14661 14985 15984 16290 17280 17376 17760 18944 19548 19980 20091 20736 21312 21720 23040 23168 23680 23976 24435 25920 26064 26640 26788 28416 28960 29322 29970 31968 32580 33485 34560 34752 35520 39096 39960 40182 41472 42624 43440 46336 47360 47952 48870 51840 52128 53280 53576 56832 57920 58644 59940 60273 63936 65160 66970 69120 69504 71040 73305 78192 79920 80364 85248 86880 92672 94720 95904 97740 100455 103680 104256 106560 107152 115840 117288 119880 120546 127872 130320 133940 139008 142080 146610 156384 159840 160728 170496 173760 180819 191808 195480 200910 207360 208512 213120 214304 231680 234576 239760 241092 255744 260640 267880 278016 284160 293220 301365 312768 319680 321456 347520 361638 383616 390960 401820 417024 426240 428608 463360 469152 479520 482184 511488 521280 535760 542457 586440 602730 625536 639360 642912 695040 723276 767232 781920 803640 834048 852480 857216 904095 938304 959040 964368 1042560 1071520 1084914 1172880 1205460 1251072 1278720 1285824 1390080 1446552 1534464 1563840 1607280 1714432 1808190 1876608 1918080 1928736 2085120 2143040 2169828 2345760 2410920 2502144 2557440 2571648 2712285 2893104 3127680 3214560 3428864 3616380 3753216 3836160 3857472 4170240 4286080 4339656 4691520 4821840 5143296 5424570 5786208 6255360 6429120 7232760 7506432 7672320 7714944 8572160 8679312 9383040 9643680 10286592 10849140 11572416 12510720 12858240 14465520 15429888 17144320 17358624 18766080 19287360 21698280 23144832 25716480 28931040 30859776 34717248 37532160 38574720 43396560 46289664 51432960 57862080 69434496 77149440 86793120 92579328 115724160 138868992 154298880 173586240 231448320 277737984 347172480 462896640 694344960 1388689920
- Sum of all divisors σ(n): 5136499368
- Sum of proper divisors (its aliquot sum) s(n): 3747809448
- 1388689920 is an abundant number, because the sum of its proper divisors (3747809448) is greater than itself. Its abundance is 2359119528
Bases of 1388689920
- Binary: 10100101100010110111010000000002
- Hexadecimal: 0x52C5BA00
- Base-36: MYSG00
Squares and roots of 1388689920
- 1388689920 squared (13886899202) is 1928459693909606400
- 1388689920 cubed (13886899203) is 2678032538058555798847488000
-
The
square root of 1388689920 is 37265.1300816191 -
The
cube root of 1388689920 is 1115.6683023937
Scales and comparisons
How big is 1388689920?- 1,388,689,920 seconds is equal to 44 years, 8 weeks, 19 hours, 12 minutes.
-
To count from 1 to 1,388,689,920 would take you about eighty-eight 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 1388689920 cubic inches would be around 93 feet tall.
Recreational maths with 1388689920
- 1388689920 backwards is 0299868831
- 1388689920 is a
Harshad number . - The number of decimal digits it has is: 10
- The sum of 1388689920's digits is 54
- More coming soon!
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