21497869 is an odd 8-digits composite number following 21497868
and preceding 21497870 . In scientific notation, it is written as 2.1497869 × 10^7.
The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors.
There are 21224976 positive integers (up to 21497869) that are relatively prime to 21497869.
21497869 has 8 divisors, whose sum is 21772800
The reverse of 21497869 is 96879412
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty-one million four hundred ninety-seven thousand eight hundred sixty-nine
Scientific notation
2.1497869 × 10^7
Engineering notation
2.1497869 × 10^6
Prime Factorization
223 × 149 × 647
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21497869
Product of the distinct prime numbers
The prime factorization of 21497869 is 223 × 149 × 647.
Since it has a total of 3 prime factors.
5 , 2 , 11 , 30 , 885 , 884 , 579 , 211 , 71511 , 55981 , 738657 , 224173 , 5425855 , 4872510 , 34138511 , 41110504 , 729608740 , 563371419 , 6386335107 , 2336610494
n×2
42995738
n×3
64493607
n×4
85991476
n×5
107489345
n÷2
10748934.5
n÷3
7165956.3333333
n÷3
5374467.25
n÷5
4299573.8
n2
462158371541161
n3
9.9354201286452E+21
n4
2.1359036038558E+29
n5
4.5917375872319E+36
2 √n
4636.5794504139
3 √n
278.0557011035
4 √n
68.092433136244
5 √n
29.273798722022
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
-21497868
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 21497869 can be divided by 8 positive divisors.
The sum of these divisors (counting 21497869) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010000000100000001101
3
Ternary
1111110012112101
4
Quaternary
1102000200031
5
Quinary
21000412434
6
Senary
2044435101
8
Octal
122004015
10
Decimal
21497869
12
Duodecimal
7248a91
16
Hexadecimal
148080d
20
Vigesimal
6e74d9
36
Base36
csrv1
md5
4123d4914a25fce3b693e6f2a05983eb
sha1
59f82fd6e1fa5f9482d54d466f5c1e4552461503
sha256
dcc436f29ab768c9a7a08a920de12b52b2154ef906068604f413aba6782843b9
sha512
9aaa4ba9e3f28741121705a58e99d425ad5377bbf1fe2de52fdae64ccf0d64b3286ba0ddb94862139414d97169a82e4d6e665a6a967b2fea89e4da509820a0c2
ripemd-160
57e4dd21ea0ada109717518a5e83521d4dd7bf5d
Diameter
42995738
Circumference
135075094.63647
Area
1.4519133448287E+15
Volume
4.1617390515307E+22
Surface area
5.8076533793149E+15
Circumference
135075094.63647
Perimeter
85991476
Area
462158371541161
Diagonal
30402577.90192
Surface area
2772950229246966
Volume
9.9354201286452E+21
Space diagonal
37235401.36246
Perimeter
64493607
Area
2.0012044516315E+14
Altitude
18617700.68123
Surface area
2.0012044516315E+14
Volume
1.1709004911504E+21
Height
10134192.633973