21090951 is an odd 8-digits composite number following 21090950
and preceding 21090952 . In scientific notation, it is written as 2.1090951 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 12051936 positive integers (up to 21090951) that are relatively prime to 21090951.
21090951 has 8 divisors, whose sum is 26782240
The reverse of 21090951 is 15909012
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million ninety thousand nine hundred fifty-one
Scientific notation
2.1090951 × 10^7
Engineering notation
2.1090951 × 10^6
Prime Factorization
9 × 7 × 334777
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21090951
Product of the distinct prime numbers
The prime factorization of 21090951 is 9 × 7 × 334777.
Since it has a total of 3 prime factors.
5 , 4 , 5 , 87 , 838 , 195 , 3342 , 5062 , 69755 , 33293 , 621166 , 402367 , 1374325 , 8125680 , 88391505 , 56912295 , 989523213 , 621135775 , 3018003503 , 3618024032
n×2
42181902
n×3
63272853
n×4
84363804
n×5
105454755
n÷2
10545475.5
n÷3
7030317
n÷3
5272737.75
n÷5
4218190.2
n2
444828214084401
n3
9.3818500666716E+21
n4
1.9787214004552E+29
n5
4.1733116099652E+36
2 √n
4592.4885410853
3 √n
276.29014069694
4 √n
67.767901997076
5 √n
29.162129388749
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21090950
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21090951 can be divided by 8 positive divisors.
The sum of these divisors (counting 21090951) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011101001010000111
3
Ternary
1110200112100100
4
Quaternary
1100131022013
5
Quinary
20344402301
6
Senary
2032015143
8
Octal
120351207
10
Decimal
21090951
12
Duodecimal
70914b3
16
Hexadecimal
141d287
20
Vigesimal
6bg77b
36
Base36
ck1vr
md5
a7adf978288e15fde5070d1f8fdc79ba
sha1
1152d0a5e18fd48d0b6357929bac823eca390015
sha256
d69b5af350e20e65c9591d25c73f27bfb928221ed6fa5d03296aae99e40b44a5
sha512
f5ddc1a0e4a0f5bd7d2b26c81456b336b95544e851d9fc3a17126c46543463c13e95aa92b7c7327ddc68783da64857195f6a76b0226c3e31710d9f8e4526e9a6
ripemd-160
d760e2231016d90ade7175d5d97e402a9a729eef
Diameter
42181902
Circumference
132518353.43764
Area
1.397469049477E+15
Volume
3.9298601662049E+22
Surface area
5.5898761979081E+15
Circumference
132518353.43764
Perimeter
84363804
Area
444828214084401
Diagonal
29827108.947546
Surface area
2668969284506406
Volume
9.3818500666716E+21
Space diagonal
36530598.711946
Perimeter
63272853
Area
1.9261626685858E+14
Altitude
18265299.355973
Surface area
1.9261626685858E+14
Volume
1.1056616337032E+21
Height
9942369.6491821