161421312
161,421,312 is an even composite number composed of five prime numbers multiplied together.
161421312 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 161421312:
211 × 3 × 13 × 43 × 47
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 13 × 43 × 47)See below for interesting mathematical facts about the number 161421312 from the Numbermatics database.
Names of 161421312
- Cardinal: 161421312 can be written as One hundred sixty-one million, four hundred twenty-one thousand, three hundred twelve.
Scientific notation
- Scientific notation: 1.61421312 × 108
Factors of 161421312
Divisors of 161421312
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 4 6 8 12 13 16 24 26 32 39 43 47 48 52 64 78 86 94 96 104 128 129 141 156 172 188 192 208 256 258 282 312 344 376 384 416 512 516 559 564 611 624 688 752 768 832 1024 1032 1118 1128 1222 1248 1376 1504 1536 1664 1677 1833 2021 2048 2064 2236 2256 2444 2496 2752 3008 3072 3328 3354 3666 4042 4128 4472 4512 4888 4992 5504 6016 6063 6144 6656 6708 7332 8084 8256 8944 9024 9776 9984 11008 12032 12126 13312 13416 14664 16168 16512 17888 18048 19552 19968 22016 24064 24252 26273 26624 26832 29328 32336 33024 35776 36096 39104 39936 44032 48128 48504 52546 53664 58656 64672 66048 71552 72192 78208 78819 79872 88064 96256 97008 105092 107328 117312 129344 132096 143104 144384 156416 157638 194016 210184 214656 234624 258688 264192 286208 288768 312832 315276 388032 420368 429312 469248 517376 572416 625664 630552 776064 840736 858624 938496 1034752 1144832 1251328 1261104 1552128 1681472 1717248 1876992 2069504 2522208 3104256 3362944 3434496 3753984 4139008 5044416 6208512 6725888 10088832 12417024 13451776 20177664 26903552 40355328 53807104 80710656 161421312
- Sum of all divisors σ(n): 484323840
- Sum of proper divisors (its aliquot sum) s(n): 322902528
- 161421312 is an abundant number, because the sum of its proper divisors (322902528) is greater than itself. Its abundance is 161481216
Bases of 161421312
- Binary: 10011001111100011000000000002
- Hexadecimal: 0x99F1800
- Base-36: 2O3THC
Squares and roots of 161421312
- 161421312 squared (1614213122) is 26056839967801344
- 161421312 cubed (1614213123) is 4206129294176530703843328
-
The
square root of 161421312 is 12705.1687119849 -
The
cube root of 161421312 is 544.4863010193
Scales and comparisons
How big is 161421312?- 161,421,312 seconds is equal to 5 years, 6 weeks, 6 days, 7 hours, 15 minutes, 12 seconds.
-
To count from 1 to 161,421,312 would take you about seven 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 161421312 cubic inches would be around 45.4 feet tall.
Recreational maths with 161421312
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