1998255257 is an odd 10-digits composite number following 1998255256
and preceding 1998255258 . In scientific notation, it is written as 1.998255257 × 10^9.
The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors.
There are 1933795380 positive integers (up to 1998255257) that are relatively prime to 1998255257.
1998255257 has 4 divisors, whose sum is 2062715136
The reverse of 1998255257 is 7525528991
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 53
Digital Root 8
Name
one billion nine hundred ninety-eight million two hundred fifty-five thousand two hundred fifty-seven
Scientific notation
1.998255257 × 10^9
Engineering notation
1.998255257 × 10^9
Prime Factorization
31 × 64459847
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1998255257
Product of the distinct prime numbers
The prime factorization of 1998255257 is 31 × 64459847.
Since it has a total of 2 prime factors.
7 , 4 , 14 , 4 , 947 , 128 , 7268 , 7485 , 7078 , 40987 , 133010 , 891761 , 2909935 , 9923381 , 93575531 , 6580220 , 835452551 , 461029392 , 4938229471 , 3266335357
n×2
3996510514
n×3
5994765771
n×4
7993021028
n×5
9991276285
n÷2
999127628.5
n÷3
666085085.66667
n÷3
499563814.25
n÷5
399651051.4
n2
3993024072128136049
n3
7.9790813434576E+27
n4
1.5944241240595E+37
n5
3.1860663877895E+46
2 √n
44701.848474084
3 √n
1259.5545702333
4 √n
211.42811656467
5 √n
72.465316410367
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
-1998255256
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 1998255257 can be divided by 4 positive divisors.
The sum of these divisors (counting 1998255257) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110111000110101111010010011001
3
Ternary
12011021001212212222
4
Quaternary
1313012233102121
5
Quinary
13043023132012
6
Senary
530141313425
8
Octal
16706572231
10
Decimal
1998255257
12
Duodecimal
479265875
16
Hexadecimal
771af499
20
Vigesimal
1b491i2h
36
Base36
x1pjmh
md5
79c2f11075f5d88b8273eb16fe62d408
sha1
2de03a2e3f1fd46e2195eb5fe0f0618717a31588
sha256
6b8a4a5b2ce0c79eff082b46e83276f75584bcd0c6a67dc005711a74fc1d777f
sha512
52d9d4e0b63a4fe8a514b8f099915d0fbc1f5612ddaf5bcefdfd6aa33f4c26096cc9b98d864706b375b71b17c0626f10bbd3384bd866923d29dc7a0b3adbe656
ripemd-160
cc964773d5d49456fb8ee41232bcf11460350bcc
Diameter
3996510514
Circumference
12555408070.777
Area
1.2544455090605E+19
Volume
3.3422697774669E+28
Surface area
5.017782036242E+19
Circumference
12555408070.777
Perimeter
7993021028
Area
3993024072128136049
Diagonal
2825959685.5327
Surface area
2.3958144432769E+19
Volume
7.9790813434576E+27
Space diagonal
3461079631.6156
Perimeter
5994765771
Area
1.7290301421929E+18
Altitude
1730539815.8078
Surface area
1.7290301421929E+18
Volume
9.4034375426632E+26
Height
941986561.84424