21087953 is an odd 8-digits prime number following 21087952
and preceding 21087954 . In scientific notation, it is written as 2.1087953 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 21087952 positive integers (up to 21087953) that are relatively prime to 21087953.
21087953 has 2 divisors, whose sum is 21087954
The reverse of 21087953 is 35978012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million eighty-seven thousand nine hundred fifty-three
Scientific notation
2.1087953 × 10^7
Engineering notation
2.1087953 × 10^6
Prime Factorization
21087953
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21087953
Product of the distinct prime numbers
The prime factorization of 21087953 is 21087953.
Since it has a total of 1 prime factors.
4 , 5 , 54 , 38 , 695 , 527 , 2251 , 3670 , 61597 , 36291 , 338482 , 503425 , 9108857 , 6240720 , 88158720 , 4211901 , 714342629 , 192133528 , 2050483568 , 9500813526
n×2
42175906
n×3
63263859
n×4
84351812
n×5
105439765
n÷2
10543976.5
n÷3
7029317.6666667
n÷3
5271988.25
n÷5
4217590.6
n2
444701761730209
n3
9.3778498503838E+21
n4
1.9775965688595E+29
n5
4.1703463497071E+36
2 √n
4592.1621269289
3 √n
276.27704887236
4 √n
67.765493630083
5 √n
29.161300284027
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21087954
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10543977
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4592.1622358101
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999051591
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21087953 can be divided by 2 positive divisors.
The sum of these divisors (counting 21087953) is 21087954, the average is 10543977.
Base
System
Value
2
Binary
1010000011100011011010001
3
Ternary
1110200101020022
4
Quaternary
1100130123101
5
Quinary
20344303303
6
Senary
2031553225
8
Octal
120343321
10
Decimal
21087953
12
Duodecimal
708b815
16
Hexadecimal
141c6d1
20
Vigesimal
6bfjhd
36
Base36
cjzkh
md5
106f54d022d5f4bbc0603221603c3bc3
sha1
04bb01a57c729c4c1fca92a70f21dada4faac55e
sha256
aaf2199470a91ea9c37f3750feaaa35fe8c5aa5727df59dce422ec57886c8dc8
sha512
85ac0b178a3567e2f7a052e1102c63beaa78675926f20a8ada160126d31787aca25264fcf314120668917d5a54b9657522d47e2990340695fdc398e18cc00243
ripemd-160
7d58ee1caeea543c6f69d99ff90a1abcae00f0b4
Diameter
42175906
Circumference
132499516.44809
Area
1.3970717876901E+15
Volume
3.9281845595245E+22
Surface area
5.5882871507603E+15
Circumference
132499516.44809
Perimeter
84351812
Area
444701761730209
Diagonal
29822869.135286
Surface area
2668210570381254
Volume
9.3778498503838E+21
Space diagonal
36525406.023625
Perimeter
63263859
Area
1.9256151138303E+14
Altitude
18262703.011812
Surface area
1.9256151138303E+14
Volume
1.1051902036926E+21
Height
9940956.3784288