31021921 is an odd 8-digits composite number following 31021920
and preceding 31021922 . In scientific notation, it is written as 3.1021921 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 26590212 positive integers (up to 31021921) that are relatively prime to 31021921.
31021921 has 4 divisors, whose sum is 35453632
The reverse of 31021921 is 12912013
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
thirty-one million twenty-one thousand nine hundred twenty-one
Scientific notation
3.1021921 × 10^7
Engineering notation
3.1021921 × 10^6
Prime Factorization
7 × 4431703
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
31021921
Product of the distinct prime numbers
The prime factorization of 31021921 is 7 × 4431703.
Since it has a total of 2 prime factors.
4 , 7 , 62 , 11 , 2 , 72 , 248 , 6438 , 89976 , 14602 , 823651 , 905129 , 1374413 , 8585590 , 29486371 , 47028903 , 428677954 , 672390071 , 8215200509 , 9156137862
n×2
62043842
n×3
93065763
n×4
124087684
n×5
155109605
n÷2
15510960.5
n÷3
10340640.333333
n÷3
7755480.25
n÷5
6204384.2
n2
962359582530241
n3
2.9854242942846E+22
n4
9.2613596608778E+29
n5
2.8730516775234E+37
2 √n
5569.7325788587
3 √n
314.2120931748
4 √n
74.630641018677
5 √n
31.501681593166
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-31021920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31021921 can be divided by 4 positive divisors.
The sum of these divisors (counting 31021921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110010101101101100001
3
Ternary
2011101002002001
4
Quaternary
1312111231201
5
Quinary
30420200141
6
Senary
3024524001
8
Octal
166255541
10
Decimal
31021921
12
Duodecimal
a480601
16
Hexadecimal
1d95b61
20
Vigesimal
9dheg1
36
Base36
igwo1
md5
b2ac5b66ca21209d069cd4c0838e4f57
sha1
94ddcf00ce7afbbcf918e963ca1e5fbac9ee7fbd
sha256
aee051e2b474654a51b3a1ff3d2fccf70088ad8987b573870d345f8a3698a9cd
sha512
3d4a94ff7d8e22c82e5af13afea8f26aad1b49901dda568c11fdf9092f8667f8573e59d4fbc3f39f091c565979aa79c590ea1e3620aa2142feca70775b6460d9
ripemd-160
8291ebff26edb7234dd5bad234874dc95a879e66
Diameter
62043842
Circumference
194916478.22769
Area
3.0233417945887E+15
Volume
1.2505316041031E+23
Surface area
1.2093367178355E+16
Circumference
194916478.22769
Perimeter
124087684
Area
962359582530241
Diagonal
43871621.409067
Surface area
5774157495181446
Volume
2.9854242942846E+22
Space diagonal
53731543.320388
Perimeter
93065763
Area
4.1671392302329E+14
Altitude
26865771.660194
Surface area
4.1671392302329E+14
Volume
3.5183562720129E+21
Height
14623873.803022