161898493 is an odd 9-digits prime number following 161898492
and preceding 161898494 . In scientific notation, it is written as 1.61898493 × 10^8.
The sum of its digits is 49. It has a total of 1 prime factors and 2 positive divisors.
There are 161898492 positive integers (up to 161898493) that are relatively prime to 161898493.
161898493 has 2 divisors, whose sum is 161898494
The reverse of 161898493 is 394898161
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 49 Digital Root 4
Name
one hundred sixty-one million eight hundred ninety-eight thousand four hundred ninety-three
Scientific notation
1.61898493 × 10^8
Engineering notation
1.61898493 × 10^6
Prime Factorization
161898493
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
161898493 Product of the distinct prime numbers
The prime factorization of 161898493 is 161898493.
Since it has a total of 1 prime factors.
9 , 4 , 95 , 95 , 90 , 109 , 783 , 4538 , 71837 , 38377 , 267920 , 51078 , 2016611 , 5068081 , 16098339 , 10103759 , 208345120 , 45255879 , 1922593050 , 3362905219
n×2
323796986
n×3
485695479
n×4
647593972
n×5
809492465
n÷2
80949246.5
n÷3
53966164.333333
n÷3
40474623.25
n÷5
32379698.6
n2
26211122035671049
n3
4.2435411574142E+24
n4
6.8702291836884E+32
n5
1.1122797514038E+41
2 √n12723.933864965
3 √n545.02229575202
4 √n112.80041606734
5 √n43.837780850737
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
161898494 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
80949247 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
12723.933904261 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999876466 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 161898493 can be divided by 2 positive divisors.
The sum of these divisors (counting 161898493) is 161898494, the average is 80949247.
Base
System
Value
2
Binary
1001101001100101111111111101
3
Ternary
102021122021222111
4
Quaternary
21221211333331
5
Quinary
312421222433
6
Senary
24022014021
8
Octal
1151457775
10
Decimal
161898493
12
Duodecimal
46277311
16
Hexadecimal
9a65ffd
20
Vigesimal
2abh64d
36
Base36
2oe1od
md5
bc7238c3850a7afdd45e3738b55d9d5b
sha1
abb6def7bfddf7882d14e490a221df05e32f2257
sha256
6160e6648503ec3c143619e5921dfb579c3b7ac6cad1014e596ada8241f03307
sha512
71127f0349482cb401cada497a67bacd454adfbc75a121b23ee9b38ef2a1f0366c746e159430e0d02d0d05eea455ee0c0e96666023489d27ed5dce812e382cea
ripemd-160
5c77db1d51ab1f5bcfc2ffddc762ac62a10fe638
Diameter
323796986
Circumference
1017238232.4721
Area
8.234466842961E+16
Volume
1.7775303633785E+25
Surface area
3.2937867371844E+17
Circumference
1017238232.4721
Perimeter
647593972
Area
26211122035671049
Diagonal
228959044.52837
Surface area
157266732214026294
Volume
4.2435411574142E+24
Space diagonal
280416415.54483
Perimeter
485695479
Area
1.1349748772293E+16
Altitude
140208207.77242
Surface area
1.1349748772293E+16
Volume
5.0010612144197E+23
Height
76319681.509455