145372640
145,372,640 is an even composite number composed of six prime numbers multiplied together.
145372640 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 145372640:
25 × 5 × 7 × 31 × 53 × 79
(2 × 2 × 2 × 2 × 2 × 5 × 7 × 31 × 53 × 79)See below for interesting mathematical facts about the number 145372640 from the Numbermatics database.
Names of 145372640
- Cardinal: 145372640 can be written as One hundred forty-five million, three hundred seventy-two thousand, six hundred forty.
Scientific notation
- Scientific notation: 1.4537264 × 108
Factors of 145372640
Divisors of 145372640
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 28 31 32 35 40 53 56 62 70 79 80 106 112 124 140 155 158 160 212 217 224 248 265 280 310 316 371 395 424 434 496 530 553 560 620 632 742 790 848 868 992 1060 1085 1106 1120 1240 1264 1484 1580 1643 1696 1736 1855 2120 2170 2212 2449 2480 2528 2765 2968 3160 3286 3472 3710 4187 4240 4340 4424 4898 4960 5530 5936 6320 6572 6944 7420 8215 8374 8480 8680 8848 9796 11060 11501 11872 12245 12640 13144 14840 16430 16748 17143 17360 17696 19592 20935 22120 23002 24490 26288 29309 29680 32860 33496 34286 34720 39184 41870 44240 46004 48980 52576 57505 58618 59360 65720 66992 68572 78368 83740 85715 88480 92008 97960 115010 117236 129797 131440 133984 137144 146545 167480 171430 184016 195920 230020 234472 259594 262880 274288 293090 334960 342860 368032 391840 460040 468944 519188 548576 586180 648985 669920 685720 908579 920080 937888 1038376 1172360 1297970 1371440 1817158 1840160 2076752 2344720 2595940 2742880 3634316 4153504 4542895 4689440 5191880 7268632 9085790 10383760 14537264 18171580 20767520 29074528 36343160 72686320 145372640
- Sum of all divisors σ(n): 418037760
- Sum of proper divisors (its aliquot sum) s(n): 272665120
- 145372640 is an abundant number, because the sum of its proper divisors (272665120) is greater than itself. Its abundance is 127292480
Bases of 145372640
- Binary: 10001010101000110101111000002
- Hexadecimal: 0x8AA35E0
- Base-36: 2EJU8W
Squares and roots of 145372640
- 145372640 squared (1453726402) is 21133204460569600
- 145372640 cubed (1453726403) is 3072189724092778655744000
-
The
square root of 145372640 is 12057.0576841947 -
The
cube root of 145372640 is 525.8084475541
Scales and comparisons
How big is 145372640?- 145,372,640 seconds is equal to 4 years, 32 weeks, 2 days, 13 hours, 17 minutes, 20 seconds.
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To count from 1 to 145,372,640 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 145372640 cubic inches would be around 43.8 feet tall.
Recreational maths with 145372640
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