21308957 is an odd 8-digits prime number following 21308956
and preceding 21308958 . In scientific notation, it is written as 2.1308957 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 21308956 positive integers (up to 21308957) that are relatively prime to 21308957.
21308957 has 2 divisors, whose sum is 21308958
The reverse of 21308957 is 75980312
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 three hundred eight thousand nine hundred fifty-seven
Scientific notation
2.1308957 × 10^7
Engineering notation
2.1308957 × 10^6
Prime Factorization
21308957
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21308957
Product of the distinct prime numbers
The prime factorization of 21308957 is 21308957.
Since it has a total of 1 prime factors.
2 , 5 , 54 , 21 , 654 , 822 , 7342 , 8419 , 90689 , 16029 , 253956 , 222235 , 3864772 , 9058945 , 38026664 , 53111198 , 165872299 , 397615625 , 5574794554 , 9342795466
n×2
42617914
n×3
63926871
n×4
85235828
n×5
106544785
n÷2
10654478.5
n÷3
7102985.6666667
n÷3
5327239.25
n÷5
4261791.4
n2
454071648427849
n3
9.6757932312682E+21
n4
2.0618106190598E+29
n5
4.393503382369E+36
2 √n
4616.1625837919
3 √n
277.23883444575
4 √n
67.942347499861
5 √n
29.222168362862
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21308958
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10654479
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4616.1626921069
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999061428
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21308957 can be divided by 2 positive divisors.
The sum of these divisors (counting 21308957) is 21308958, the average is 10654479.
Base
System
Value
2
Binary
1010001010010011000011101
3
Ternary
1111002121101122
4
Quaternary
1101102120131
5
Quinary
20423341312
6
Senary
2040420325
8
Octal
121223035
10
Decimal
21308957
12
Duodecimal
71776a5
16
Hexadecimal
145261d
20
Vigesimal
6d3c7h
36
Base36
coq3h
md5
15de13e8d088b4ab051df7a69c330d53
sha1
5445c621371257faa54df433dda5343ab0daba67
sha256
1391b3957357f66997b3b91b11371f71f61667aa97a881bef7ce15c39fbeb81c
sha512
9057957a192efc8443e77d6e0b062309a98c1e1374bc24d07394436c8a403232115b06875cbae76db4e2c1fc2a4451db422bccc128fc5c77a10b67c7cac9ff17
ripemd-160
7f1fa575b6c32c96ad4b4d7bf8bddf85c1dfdfcc
Diameter
42617914
Circumference
133888125.53372
Area
1.4265081549043E+15
Volume
4.0529867910674E+22
Surface area
5.7060326196174E+15
Circumference
133888125.53372
Perimeter
85235828
Area
454071648427849
Diagonal
30135415.989425
Surface area
2724429890567094
Volume
9.6757932312682E+21
Space diagonal
36908196.1803
Perimeter
63926871
Area
1.966187913384E+14
Altitude
18454098.09015
Surface area
1.966187913384E+14
Volume
1.1403031678648E+21
Height
10045138.663142