21684977 is an odd 8-digits prime number following 21684976
and preceding 21684978 . In scientific notation, it is written as 2.1684977 × 10^7.
The sum of its digits is 44. It has a total of 1 prime factors and 2 positive divisors.
There are 21684976 positive integers (up to 21684977) that are relatively prime to 21684977.
21684977 has 2 divisors, whose sum is 21684978
The reverse of 21684977 is 77948612
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 44 Digital Root 8
Name
twenty-one million six hundred eighty-four thousand nine hundred seventy-seven
Scientific notation
2.1684977 × 10^7
Engineering notation
2.1684977 × 10^6
Prime Factorization
21684977
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21684977 Product of the distinct prime numbers
The prime factorization of 21684977 is 21684977.
Since it has a total of 1 prime factors.
2 , 8 , 22 , 78 , 221 , 947 , 8957 , 7284 , 3045 , 1550 , 832120 , 555164 , 3650444 , 5572572 , 94247243 , 76773916 , 672929545 , 708127296 , 7607357678 , 4400826793
n×2
43369954
n×3
65054931
n×4
86739908
n×5
108424885
n÷2
10842488.5
n÷3
7228325.6666667
n÷3
5421244.25
n÷5
4336995.4
n2
470238227490529
n3
1.0197105147653E+22
n4
2.2112399059343E+29
n5
4.7950686501668E+36
2 √n4656.7131111976
3 √n278.8600635159
4 √n68.240113651705
5 √n29.324579493731
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21684978 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10842489 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4656.7132185695 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999077703 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21684977 can be divided by 2 positive divisors.
The sum of these divisors (counting 21684977) is 21684978, the average is 10842489.
Base
System
Value
2
Binary
1010010101110001011110001
3
Ternary
1111210201012022
4
Quaternary
1102232023301
5
Quinary
21022404402
6
Senary
2052441225
8
Octal
122561361
10
Decimal
21684977
12
Duodecimal
7319215
16
Hexadecimal
14ae2f1
20
Vigesimal
6fac8h
36
Base36
cws8h
md5
d140cd2a9ee1081c09e528bf35929382
sha1
7638c19d3302bd0ffc9ae57fe0409238ab7186a0
sha256
0b2463653276c4c58416a7e313f46c369f833c4f098a37edc21c701cb1326cb6
sha512
fa7e14457ec3901aee3727ee3b558b11b71954bce046dfad33617b9049e67b0f73a872af2208fb772e2459dbe60967570bc2c9d8bf79e15cf748b75c75d7fa72
ripemd-160
226419a001c82e85cd10db28325bff6c85c760b6
Diameter
43369954
Circumference
136250728.87293
Area
1.4772969609213E+15
Volume
4.2713534159665E+22
Surface area
5.9091878436853E+15
Circumference
136250728.87293
Perimeter
86739908
Area
470238227490529
Diagonal
30667188.573149
Surface area
2821429364943174
Volume
1.0197105147653E+22
Space diagonal
37559481.924963
Perimeter
65054931
Area
2.0361912541868E+14
Altitude
18779740.962481
Surface area
2.0361912541868E+14
Volume
1.2017403663963E+21
Height
10222396.19105