61872021 is an odd 8-digits composite number following 61872020
and preceding 61872022 . In scientific notation, it is written as 6.1872021 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 40631976 positive integers (up to 61872021) that are relatively prime to 61872021.
61872021 has 12 divisors, whose sum is 90705472
The reverse of 61872021 is 12027816
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
sixty-one million eight hundred seventy-two thousand twenty-one
Scientific notation
6.1872021 × 10^7
Engineering notation
6.1872021 × 10^6
Prime Factorization
3 × 3 × 67 × 102607
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20624007
Product of the distinct prime numbers
The prime factorization of 61872021 is 3 × 3 × 67 × 102607.
Since it has a total of 4 prime factors.
6 , 5 , 7 , 81 , 649 , 48 , 9543 , 170 , 79964 , 41135 , 246602 , 45500 , 8755763 , 2159457 , 73111952 , 61435760 , 453763643 , 565379966 , 2858006489 , 3989437022
n×2
123744042
n×3
185616063
n×4
247488084
n×5
309360105
n÷2
30936010.5
n÷3
20624007
n÷3
15468005.25
n÷5
12374404.2
n2
3828146982624441
n3
2.3685519050003E+23
n4
1.4654709320577E+31
n5
9.0671648283161E+38
2 √n
7865.8770013267
3 √n
395.5166470266
4 √n
88.689779576492
5 √n
36.165865299446
1 , 3 , 9 , 67 , 201 , 603 , 102607 , 307821 , 923463 , 6874669 , 20624007 , 61872021
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-61872020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 61872021 can be divided by 12 positive divisors.
The sum of these divisors (counting 61872021) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
11101100000001011110010101
3
Ternary
11022102102110100
4
Quaternary
3230001132111
5
Quinary
111314401041
6
Senary
10050044313
8
Octal
354013625
10
Decimal
61872021
12
Duodecimal
18879699
16
Hexadecimal
3b01795
20
Vigesimal
j6e011
36
Base36
10u4r9
md5
abc3102b290ca19e2a414efc04e4c89e
sha1
5c2127a0eca7a47db87540fe30e6428b1174aa1c
sha256
0b80a9267641b8f5d4ed6361983df7e07a54d566e5fefe1d43f758c5f32c06e3
sha512
4198f22e98d6771f53a7bac2681b1011d1024c81fb305b6d2aff7f2bdbaa78bc09e7f1987f066c56786565720ee1e16a163deb3f0a3c628fb29a78e3275f2dbe
ripemd-160
765b318597c5eb3a1081e7c72cd274fdf7df1f11
Diameter
123744042
Circumference
388753373.27271
Area
1.2026478437475E+16
Volume
9.9213670191932E+23
Surface area
4.81059137499E+16
Circumference
388753373.27271
Perimeter
247488084
Area
3828146982624441
Diagonal
87500251.229633
Surface area
22968881895746646
Volume
2.3685519050003E+23
Space diagonal
107165483.93897
Perimeter
185616063
Area
1.6576362681868E+15
Altitude
53582741.969484
Surface area
1.6576362681868E+15
Volume
2.7913651893633E+22
Height
29166750.409878