1998617901 is an odd 10-digits composite number following 1998617900
and preceding 1998617902 . In scientific notation, it is written as 1.998617901 × 10^9.
The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors.
There are 1141747200 positive integers (up to 1998617901) that are relatively prime to 1998617901.
1998617901 has 16 divisors, whose sum is 3046366848
The reverse of 1998617901 is 1097168991
Previous prime number is 4241
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 51
Digital Root 6
Name
one billion nine hundred ninety-eight million six hundred seventeen thousand nine hundred one
Scientific notation
1.998617901 × 10^9
Engineering notation
1.998617901 × 10^9
Prime Factorization
7 × 3 × 4241 × 22441
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1998617901
Product of the distinct prime numbers
The prime factorization of 1998617901 is 7 × 3 × 4241 × 22441.
Since it has a total of 4 prime factors.
4 , 9 , 38 , 36 , 660 , 501 , 3002 , 8092 , 6889 , 83181 , 484542 , 548187 , 2824245 , 3665235 , 361408 , 7932479 , 302484262 , 990526016 , 5229104258 , 5280024530
n×2
3997235802
n×3
5995853703
n×4
7994471604
n×5
9993089505
n÷2
999308950.5
n÷3
666205967
n÷3
499654475.25
n÷5
399723580.2
n2
3994473514197645801
n3
7.9834262705458E+27
n4
1.5955818655626E+37
n5
3.1889584790245E+46
2 √n
44705.904542912
3 √n
1259.6307604126
4 √n
211.43770842239
5 √n
72.467946425192
1 , 3 , 7 , 21 , 4241 , 12723 , 22441 , 29687 , 67323 , 89061 , 157087 , 471261 , 95172281 , 285516843 , 666205967 , 1998617901
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
-1998617900
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 1998617901 can be divided by 16 positive divisors.
The sum of these divisors (counting 1998617901) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110111001000000111110100101101
3
Ternary
12011021202022100020
4
Quaternary
1313020013310231
5
Quinary
13043121233101
6
Senary
530153152353
8
Octal
16710076455
10
Decimal
1998617901
12
Duodecimal
4793bb6b9
16
Hexadecimal
77207d2d
20
Vigesimal
1b4b74f1
36
Base36
x1xbfx
md5
78f6998b4b66763bf7e56ddd4a313728
sha1
1f127cad2909f3f30617acdec86f943bd3b784f4
sha256
213af79ae8802e68f36db6040b2dcd569337877fe7c868b4cc7060c7f0b5a927
sha512
3db28ec7abdd0fe8c2b859026c0bcdc312466772b1bd48fa7686c50a2037d9beb61603f96ed4e007a609ad48a99c21ce0ebf550cc2b0e498785e7c11ceb62da4
ripemd-160
5598ac464c3d88ea5390bc0d2f5c40c633e47e71
Diameter
3997235802
Circumference
12557686630.229
Area
1.2549008647162E+19
Volume
3.3440897762697E+28
Surface area
5.0196034588649E+19
Circumference
12557686630.229
Perimeter
7994471604
Area
3994473514197645801
Diagonal
2826472541.5958
Surface area
2.3966841085186E+19
Volume
7.9834262705458E+27
Space diagonal
3461707749.4487
Perimeter
5995853703
Area
1.7296577690196E+18
Altitude
1730853874.7243
Surface area
1.7296577690196E+18
Volume
9.4085580883429E+26
Height
942157513.86528