1990221581 is an odd 10-digits prime number following 1990221580
and preceding 1990221582 . In scientific notation, it is written as 1.990221581 × 10^9.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 1990221580 positive integers (up to 1990221581) that are relatively prime to 1990221581.
1990221581 has 2 divisors, whose sum is 1990221582
The reverse of 1990221581 is 1851220991
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 10
Sum of Digits 38
Digital Root 2
Name
one billion nine hundred ninety million two hundred twenty-one thousand five hundred eighty-one
Scientific notation
1.990221581 × 10^9
Engineering notation
1.990221581 × 10^9
Prime Factorization
1990221581
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
1990221581
Product of the distinct prime numbers
The prime factorization of 1990221581 is 1990221581.
Since it has a total of 1 prime factors.
9 , 8 , 29 , 38 , 24 , 277 , 1717 , 9315 , 86773 , 94267 , 576888 , 169067 , 8249374 , 6740619 , 49449861 , 40362990 , 613952275 , 802705923 , 5189572908 , 3123398099
n×2
3980443162
n×3
5970664743
n×4
7960886324
n×5
9951107905
n÷2
995110790.5
n÷3
663407193.66667
n÷3
497555395.25
n÷5
398044316.2
n2
3960981941478139561
n3
7.8832317418811E+27
n4
1.5689377940716E+37
n5
3.1225338570078E+46
2 √n
44611.899544852
3 √n
1257.8643550514
4 √n
211.21529192947
5 √n
72.406955364228
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
1990221582
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
995110791
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
44611.89955606
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999989951
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1990221581 can be divided by 2 positive divisors.
The sum of these divisors (counting 1990221581) is 1990221582, the average is 995110791.
Base
System
Value
2
Binary
1110110101000000101111100001101
3
Ternary
12010200221201202102
4
Quaternary
1312220011330031
5
Quinary
13033444042311
6
Senary
525253204445
8
Octal
16650057415
10
Decimal
1990221581
12
Duodecimal
476630725
16
Hexadecimal
76a05f0d
20
Vigesimal
1b1ihdj1
36
Base36
wwxcst
md5
3be8c3f3c946e61f80678e9a774e5586
sha1
7bc569e66f2f497edc9c8a77fd83ed5ad150e901
sha256
0581fc4cc06c5814eac29c6f28fc1de1bdca808c0867cebd95f47e15c964fbfa
sha512
ddb3b63c569fdf004ec3eb85b55ba2247c051f1a13a31f123f0e334bef107c31cd17540932c66586fa0b01a4acda71f296cc6d55d0f4a3ec61d20577e364cd9b
ripemd-160
4cd5af9a653eafef670c6b78132cc529446489af
Diameter
3980443162
Circumference
12504930995.771
Area
1.244379176835E+19
Volume
3.3021203902453E+28
Surface area
4.9775167073398E+19
Circumference
12504930995.771
Perimeter
7960886324
Area
3960981941478139561
Diagonal
2814598351.9778
Surface area
2.3765891648869E+19
Volume
7.8832317418811E+27
Space diagonal
3447164896.6121
Perimeter
5970664743
Area
1.7151554926257E+18
Altitude
1723582448.306
Surface area
1.7151554926257E+18
Volume
9.2904777039152E+26
Height
938199450.65927