87089981 is an odd 8-digits composite number following 87089980
and preceding 87089982 . In scientific notation, it is written as 8.7089981 × 10^7.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 79172700 positive integers (up to 87089981) that are relatively prime to 87089981.
87089981 has 4 divisors, whose sum is 95007264
The reverse of 87089981 is 18998078
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
eighty-seven million eighty-nine thousand nine hundred eighty-one
Scientific notation
8.7089981 × 10^7
Engineering notation
8.7089981 × 10^6
Prime Factorization
11 × 7917271
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87089981
Product of the distinct prime numbers
The prime factorization of 87089981 is 11 × 7917271.
Since it has a total of 2 prime factors.
2 , 8 , 36 , 77 , 534 , 429 , 1035 , 7324 , 71103 , 9900 , 233308 , 771029 , 5248707 , 3724501 , 81603820 , 20958981 , 470878917 , 650157600 , 5931590216 , 2428708537
n×2
174179962
n×3
261269943
n×4
348359924
n×5
435449905
n÷2
43544990.5
n÷3
29029993.666667
n÷3
21772495.25
n÷5
17417996.2
n2
7584664790580361
n3
6.6054831250301E+23
n4
5.7527139985469E+31
n5
5.0100375283189E+39
2 √n
9332.2012944428
3 √n
443.25747202291
4 √n
96.603319272387
5 √n
38.725197304293
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-87089980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 87089981 can be divided by 4 positive divisors.
The sum of these divisors (counting 87089981) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001100001110001100111101
3
Ternary
20001212121222212
4
Quaternary
11030032030331
5
Quinary
134243334411
6
Senary
12350350205
8
Octal
514161475
10
Decimal
87089981
12
Duodecimal
251bb365
16
Hexadecimal
530e33d
20
Vigesimal
17464j1
36
Base36
1fun25
md5
2738b531fcb930b2c77eb91f32ee0203
sha1
d4385179cdc2f5d768ff3243522f4bc32e1e56c5
sha256
30a2a75b13b3a6c24dedd77bf99512fc0467786e2041724ef83e970fb577c741
sha512
d2e7270ac934e2e51c8bad54082e121cb2694b2438d0ec6c7e260c79d2a6fbc01f3cf44af01774538c4da5253675cc580030f4e0194e43b67fa6bfe8f9f3dc11
ripemd-160
caa9e90b9a4ae8b541d34422f5ae51eae1cac4f3
Diameter
174179962
Circumference
547202489.02175
Area
2.3827927186028E+16
Volume
2.7668983012008E+24
Surface area
9.5311708744114E+16
Circumference
547202489.02175
Perimeter
348359924
Area
7584664790580361
Diagonal
123163832.27702
Surface area
45507988743482166
Volume
6.6054831250301E+23
Space diagonal
150844271.92221
Perimeter
261269943
Area
3.284256193916E+15
Altitude
75422135.961104
Surface area
3.284256193916E+15
Volume
7.7846365178702E+22
Height
41054610.759005