145489920
145,489,920 is an even composite number composed of four prime numbers multiplied together.
145489920 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred fifty-two divisors.
Prime factorization of 145489920:
218 × 3 × 5 × 37
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 37)See below for interesting mathematical facts about the number 145489920 from the Numbermatics database.
Names of 145489920
- Cardinal: 145489920 can be written as One hundred forty-five million, four hundred eighty-nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 1.4548992 × 108
Factors of 145489920
Divisors of 145489920
- Number of divisors d(n): 152
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 37 40 48 60 64 74 80 96 111 120 128 148 160 185 192 222 240 256 296 320 370 384 444 480 512 555 592 640 740 768 888 960 1024 1110 1184 1280 1480 1536 1776 1920 2048 2220 2368 2560 2960 3072 3552 3840 4096 4440 4736 5120 5920 6144 7104 7680 8192 8880 9472 10240 11840 12288 14208 15360 16384 17760 18944 20480 23680 24576 28416 30720 32768 35520 37888 40960 47360 49152 56832 61440 65536 71040 75776 81920 94720 98304 113664 122880 131072 142080 151552 163840 189440 196608 227328 245760 262144 284160 303104 327680 378880 393216 454656 491520 568320 606208 655360 757760 786432 909312 983040 1136640 1212416 1310720 1515520 1818624 1966080 2273280 2424832 3031040 3637248 3932160 4546560 4849664 6062080 7274496 9093120 9699328 12124160 14548992 18186240 24248320 29097984 36372480 48496640 72744960 145489920
- Sum of all divisors σ(n): 478149744
- Sum of proper divisors (its aliquot sum) s(n): 332659824
- 145489920 is an abundant number, because the sum of its proper divisors (332659824) is greater than itself. Its abundance is 187169904
Bases of 145489920
- Binary: 10001010110000000000000000002
- Hexadecimal: 0x8AC0000
- Base-36: 2EMCQO
Squares and roots of 145489920
- 145489920 squared (1454899202) is 21167316821606400
- 145489920 cubed (1454899203) is 3079631230990169407488000
-
The
square root of 145489920 is 12061.9202451351 -
The
cube root of 145489920 is 525.9498089521
Scales and comparisons
How big is 145489920?- 145,489,920 seconds is equal to 4 years, 32 weeks, 3 days, 21 hours, 52 minutes.
-
To count from 1 to 145,489,920 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 145489920 cubic inches would be around 43.8 feet tall.
Recreational maths with 145489920
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