138935790
138,935,790 is an even composite number composed of seven prime numbers multiplied together.
138935790 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 138935790:
2 × 33 × 5 × 7 × 19 × 53 × 73
(2 × 3 × 3 × 3 × 5 × 7 × 19 × 53 × 73)See below for interesting mathematical facts about the number 138935790 from the Numbermatics database.
Names of 138935790
- Cardinal: 138935790 can be written as One hundred thirty-eight million, nine hundred thirty-five thousand, seven hundred ninety.
Scientific notation
- Scientific notation: 1.3893579 × 108
Factors of 138935790
Divisors of 138935790
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 3 5 6 7 9 10 14 15 18 19 21 27 30 35 38 42 45 53 54 57 63 70 73 90 95 105 106 114 126 133 135 146 159 171 189 190 210 219 265 266 270 285 315 318 342 365 371 378 399 438 477 511 513 530 570 630 657 665 730 742 795 798 855 945 954 1007 1022 1026 1095 1113 1197 1314 1330 1387 1431 1533 1590 1710 1855 1890 1971 1995 2014 2190 2226 2385 2394 2555 2565 2774 2862 3021 3066 3285 3339 3591 3710 3869 3942 3990 4161 4599 4770 5035 5110 5130 5565 5985 6042 6570 6678 6935 7049 7155 7182 7665 7738 8322 9063 9198 9709 9855 10017 10070 11130 11607 11970 12483 13797 13870 14098 14310 15105 15330 16695 17955 18126 19345 19418 19710 20034 20805 21147 22995 23214 24966 27083 27189 27594 29127 30210 33390 34821 35245 35910 37449 38690 41610 42294 45315 45990 48545 50085 54166 54378 58035 58254 62415 63441 68985 69642 70490 73511 74898 81249 87381 90630 97090 100170 104463 105735 116070 124830 126882 135415 135945 137970 145635 147022 162498 174105 174762 187245 190323 208926 211470 220533 243747 262143 270830 271890 291270 317205 348210 367555 374490 380646 406245 436905 441066 487494 514577 522315 524286 634410 661599 731241 735110 812490 873810 951615 1029154 1044630 1102665 1218735 1310715 1323198 1462482 1543731 1903230 1984797 2205330 2437470 2572885 2621430 3087462 3307995 3656205 3969594 4631193 5145770 6615990 7312410 7718655 9262386 9923985 13893579 15437310 19847970 23155965 27787158 46311930 69467895 138935790
- Sum of all divisors σ(n): 460339200
- Sum of proper divisors (its aliquot sum) s(n): 321403410
- 138935790 is an abundant number, because the sum of its proper divisors (321403410) is greater than itself. Its abundance is 182467620
Bases of 138935790
- Binary: 10000100011111111101111011102
- Hexadecimal: 0x847FDEE
- Base-36: 2APVJI
Squares and roots of 138935790
- 138935790 squared (1389357902) is 19303153742924100
- 138935790 cubed (1389357903) is 2681898914764616743539000
-
The
square root of 138935790 is 11787.1026974401 -
The
cube root of 138935790 is 517.9303708279
Scales and comparisons
How big is 138935790?- 138,935,790 seconds is equal to 4 years, 21 weeks, 5 days, 1 hour, 16 minutes, 30 seconds.
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To count from 1 to 138,935,790 would take you about six 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 138935790 cubic inches would be around 43.2 feet tall.
Recreational maths with 138935790
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