21162487 is an odd 8-digits prime number following 21162486
and preceding 21162488 . In scientific notation, it is written as 2.1162487 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 21162486 positive integers (up to 21162487) that are relatively prime to 21162487.
21162487 has 2 divisors, whose sum is 21162488
The reverse of 21162487 is 78426112
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million one hundred sixty-two thousand four hundred eighty-seven
Scientific notation
2.1162487 × 10^7
Engineering notation
2.1162487 × 10^6
Prime Factorization
21162487
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21162487
Product of the distinct prime numbers
The prime factorization of 21162487 is 21162487.
Since it has a total of 1 prime factors.
8 , 6 , 37 , 38 , 686 , 714 , 4478 , 7548 , 76197 , 51941 , 859700 , 198500 , 52660 , 8034958 , 78582102 , 19626208 , 71460808 , 428676714 , 8487712911 , 832400955
n×2
42324974
n×3
63487461
n×4
84649948
n×5
105812435
n÷2
10581243.5
n÷3
7054162.3333333
n÷3
5290621.75
n÷5
4232497.4
n2
447850856025169
n3
9.4776379185715E+21
n4
2.0057038924248E+29
n5
4.2445682549289E+36
2 √n
4600.2703181444
3 √n
276.60216057135
4 √n
67.825292613776
5 √n
29.181884946807
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21162488
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10581244
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4600.2704268336
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999054932
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21162487 can be divided by 2 positive divisors.
The sum of these divisors (counting 21162487) is 21162488, the average is 10581244.
Base
System
Value
2
Binary
1010000101110100111110111
3
Ternary
1110211011110211
4
Quaternary
1100232213313
5
Quinary
20404144422
6
Senary
2033330251
8
Octal
120564767
10
Decimal
21162487
12
Duodecimal
7106987
16
Hexadecimal
142e9f7
20
Vigesimal
6c5647
36
Base36
cll2v
md5
48f3f36ac0e08e7c552253d1d85601bc
sha1
ab8fea87cb3b13b7f53323990b6261c53c4c5150
sha256
d3e3292632f253dc42b643567f0cd39d0e558e8c9f9b72a83f42de349b2d7442
sha512
df237e78d7c0e2ce878dbcb76b3ae310d4d8e6d770e5989679844c5752aa0ef3cff2bc0d30dc69e4f4626d04009b9d3b84a7d126891bf9152eb76c2ae2c8789c
ripemd-160
9a11dc242f02b3f5adf57ea863403c2b74cb1975
Diameter
42324974
Circumference
132967827.38178
Area
1.4069649591926E+15
Volume
3.9699836877824E+22
Surface area
5.6278598367703E+15
Circumference
132967827.38178
Perimeter
84649948
Area
447850856025169
Diagonal
29928276.128944
Surface area
2687105136151014
Volume
9.4776379185715E+21
Space diagonal
36654502.698516
Perimeter
63487461
Area
1.939251092122E+14
Altitude
18327251.349258
Surface area
1.939251092122E+14
Volume
1.1169503403088E+21
Height
9976092.0429814