1988205890 is an even 10-digits composite number following 1988205889
and preceding 1988205891 . In scientific notation, it is written as 1.988205890 × 10^9.
The sum of its digits is 50. It has a total of 4 prime factors and 16 positive divisors.
There are 722983920 positive integers (up to 1988205890) that are relatively prime to 1988205890.
1988205890 has 16 divisors, whose sum is 3904113600
The reverse of 1988205890 is 0985028891
Previous prime number is 11
Is Prime? no
Number parity even
Number length 10
Sum of Digits 50
Digital Root 5
Name
one billion nine hundred eighty-eight million two hundred five thousand eight hundred ninety
Scientific notation
1.988205890 × 10^9
Engineering notation
1.988205890 × 10^9
Prime Factorization
2 × 5 × 11 × 18074599
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1988205890
Product of the distinct prime numbers
The prime factorization of 1988205890 is 2 × 5 × 11 × 18074599.
Since it has a total of 4 prime factors.
6 , 3 , 52 , 26 , 21 , 397 , 2046 , 4222 , 72497 , 36007 , 806058 , 696087 , 4414929 , 336346 , 53279517 , 66276225 , 409499919 , 509804129 , 6989152732 , 2522388890
n×2
3976411780
n×3
5964617670
n×4
7952823560
n×5
9941029450
n÷2
994102945
n÷3
662735296.66667
n÷3
497051472.5
n÷5
397641178
n2
3952962661030692100
n3
7.8593036456113E+27
n4
1.5625913799503E+37
n5
3.1067533852804E+46
2 √n
44589.302416611
3 √n
1257.4395577429
4 √n
211.16179203779
5 √n
72.392282705391
1 , 2 , 5 , 10 , 11 , 22 , 55 , 110 , 18074599 , 36149198 , 90372995 , 180745990 , 198820589 , 397641178 , 994102945 , 1988205890
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
-1988205889
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 1988205890 can be divided by 16 positive divisors.
The sum of these divisors (counting 1988205890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110100000011001110101000010
3
Ternary
12010120011022202012
4
Quaternary
1312200121311002
5
Quinary
13032440042030
6
Senary
525142052522
8
Octal
16640316502
10
Decimal
1988205890
12
Duodecimal
475a1a142
16
Hexadecimal
76819d42
20
Vigesimal
1b165eea
36
Base36
wvq5he
md5
1323a4df2e6365c5e77f8792a44679a7
sha1
b4e08db08382edc8b47372e0869c63eea2b12751
sha256
b040224ccb9268e833c339fc4532335017b3b94192b9037ad98860aaa268826c
sha512
75b65595d8f85d444771af5121371349bd08b46ea0fa5768e4b35759c52472e475ef00f292ab0bbfe33c726e769069a659836c06799b8b98596a9bb2dd736c2f
ripemd-160
66e8930e940f07acd96bcac2ba9fb17604227c04
Diameter
3976411780
Circumference
12492266035.696
Area
1.2418598455809E+19
Volume
3.2920974127179E+28
Surface area
4.9674393823235E+19
Circumference
12492266035.696
Perimeter
7952823560
Area
3952962661030692100
Diagonal
2811747734.4281
Surface area
2.3717775966184E+19
Volume
7.8593036456113E+27
Space diagonal
3443673617.3877
Perimeter
5964617670
Area
1.711683042332E+18
Altitude
1721836808.6938
Surface area
1.711683042332E+18
Volume
9.2622781720265E+26
Height
937249244.80936