212912491 is an odd 9-digits composite number following 212912490
and preceding 212912492 . In scientific notation, it is written as 2.12912491 × 10^8.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 189438120 positive integers (up to 212912491) that are relatively prime to 212912491.
212912491 has 8 divisors, whose sum is 237210624
The reverse of 212912491 is 194219212
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 31
Digital Root 4
Name
two hundred twelve million nine hundred twelve thousand four hundred ninety-one
Scientific notation
2.12912491 × 10^8
Engineering notation
2.12912491 × 10^6
Prime Factorization
11 × 47 × 411823
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
212912491
Product of the distinct prime numbers
The prime factorization of 212912491 is 11 × 47 × 411823.
Since it has a total of 3 prime factors.
7 , 5 , 37 , 90 , 40 , 46 , 3340 , 1272 , 17329 , 9330 , 45748 , 640795 , 6124794 , 4598804 , 77136577 , 28478510 , 809778958 , 583111695 , 4969504040 , 9586034032
n×2
425824982
n×3
638737473
n×4
851649964
n×5
1064562455
n÷2
106456245.5
n÷3
70970830.333333
n÷3
53228122.75
n÷5
42582498.2
n2
45331728823825081
n3
9.6516913052171E+24
n4
2.0549656381568E+33
n5
4.3752785293937E+41
2 √n
14591.521202397
3 √n
597.12746488727
4 √n
120.79536912646
5 √n
46.306315689777
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
-212912490
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 212912491 can be divided by 8 positive divisors.
The sum of these divisors (counting 212912491) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100101100001100100101101011
3
Ternary
112211122002000211
4
Quaternary
30230030211223
5
Quinary
414001144431
6
Senary
33043241551
8
Octal
1454144553
10
Decimal
212912491
12
Duodecimal
5b3792b7
16
Hexadecimal
cb0c96b
20
Vigesimal
36ae14b
36
Base36
3irgbv
md5
9f9c00b0c3172f610857de4d471427fe
sha1
6213645970f09f5cffa017b4fa5915f0ae21a5e6
sha256
889c288eb92b8cbb38a30c12a79b10144bf311ecf4dd28ec2ef1f1a757d772f2
sha512
c048e5d2e29cb6b63728640a18944d0676decb503b0f14089206965952308e19ffe4007284f7eec206bc8342eba6e1f726c9711d54319851720cb23b2bddbe4c
ripemd-160
3e8a45562894e22a1e8ade94ce15d9995b8ec093
Diameter
425824982
Circumference
1337768635.1662
Area
1.4241382624745E+17
Volume
4.0428909998915E+25
Surface area
5.6965530498981E+17
Circumference
1337768635.1662
Perimeter
851649964
Area
45331728823825081
Diagonal
301103732.37084
Surface area
271990372942950486
Volume
9.6516913052171E+24
Space diagonal
368775251.97805
Perimeter
638737473
Area
1.962921437945E+16
Altitude
184387625.98903
Surface area
1.962921437945E+16
Volume
1.1374627286397E+24
Height
100367910.79028