21139977 is an odd 8-digits composite number following 21139976
and preceding 21139978 . In scientific notation, it is written as 2.1139977 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 13780800 positive integers (up to 21139977) that are relatively prime to 21139977.
21139977 has 16 divisors, whose sum is 28817600
The reverse of 21139977 is 77993112
Previous prime number is 349
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million one hundred thirty-nine thousand nine hundred seventy-seven
Scientific notation
2.1139977 × 10^7
Engineering notation
2.1139977 × 10^6
Prime Factorization
3 × 61 × 349 × 331
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21139977
Product of the distinct prime numbers
The prime factorization of 21139977 is 3 × 61 × 349 × 331.
Since it has a total of 4 prime factors.
3 , 5 , 36 , 6 , 912 , 18 , 3929 , 3165 , 84263 , 2275 , 147700 , 768878 , 1004884 , 9368753 , 99645048 , 94489263 , 192739897 , 191271714 , 1364364264 , 7342716632
n×2
42279954
n×3
63419931
n×4
84559908
n×5
105699885
n÷2
10569988.5
n÷3
7046659
n÷3
5284994.25
n÷5
4227995.4
n2
446898627560529
n3
9.4474267079611E+21
n4
1.9971838331548E+29
n5
4.2220420297665E+36
2 √n
4597.8230718461
3 √n
276.50405421408
4 √n
67.80724940481
5 √n
29.175674297812
1 , 3 , 61 , 183 , 331 , 349 , 993 , 1047 , 20191 , 21289 , 60573 , 63867 , 115519 , 346557 , 7046659 , 21139977
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21139976
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21139977 can be divided by 16 positive divisors.
The sum of these divisors (counting 21139977) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000101001001000001001
3
Ternary
1110210000121010
4
Quaternary
1100221020021
5
Quinary
20402434402
6
Senary
2033034133
8
Octal
120511011
10
Decimal
21139977
12
Duodecimal
70b5949
16
Hexadecimal
1429209
20
Vigesimal
6c29ih
36
Base36
cl3pl
md5
848a511a65b522dedfc4d82d90a4595c
sha1
b0ea86b3f72bb5a1ad45e6fe11882aa406770ff2
sha256
a7fcaa2317892fcfc38845e21e0197331ec98ed814dc751a7914b41f433ce5fd
sha512
5eba36e6d44179c2623368511d617e7a0ef01acce6b2d18199fdba001d707dcea158144f47bd11c208255781fe71eef3e00a1a75bc9167b4d9f175a887ccc878
ripemd-160
5b8b3bc247837f7f2f9cb4c19dd9bbb4b5c8451d
Diameter
42279954
Circumference
132826392.88051
Area
1.4039734452435E+15
Volume
3.9573288454745E+22
Surface area
5.6158937809741E+15
Circumference
132826392.88051
Perimeter
84559908
Area
446898627560529
Diagonal
29896442.181655
Surface area
2681391765363174
Volume
9.4474267079611E+21
Space diagonal
36615514.234837
Perimeter
63419931
Area
1.9351278219191E+14
Altitude
18307757.117419
Surface area
1.9351278219191E+14
Volume
1.1133899149937E+21
Height
9965480.7272184