398396987 (number)

398396987 is an odd 9-digits composite number following 398396986 and preceding 398396988. In scientific notation, it is written as 3.98396987 × 10^8. The sum of its digits is 62. It has a total of 2 prime factors and 4 positive divisors. There are 396729816 positive integers (up to 398396987) that are relatively prime to 398396987.

Interesting facts

Basic properties

Name

Name three hundred ninety-eight million three hundred ninety-six thousand nine hundred eighty-seven

Notation

Scientific notation 3.98396987 × 10^8
Engineering notation 3.98396987 × 10^6

Prime Factorization of 398396987

Prime Factorization 239 × 1666933

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 398396987
Product of the distinct prime numbers

The prime factorization of 398396987 is 239 × 1666933. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 7, 39, 82, 810, 753, 5390, 2175, 23570, 66039, 606352, 518904, 1510044, 841349, 44497928, 37254126, 681131816, 91223867, 5713556262, 8251301611

Basic calculations (n = 398396987)

Multiplication

n×y
n×2 796793974
n×3 1195190961
n×4 1593587948
n×5 1991984935

Division

n÷y
n÷2 199198493.5
n÷3 132798995.66667
n÷3 99599246.75
n÷5 79679397.4

Exponentiation

ny
n2 158720159250678169
n3 6.323363322163E+25
n4 2.5192088952561E+34
n5 1.0036452334936E+43

Nth Root

y√n
2√n 19959.884443553
3√n 735.82072357962
4√n 141.2794551361
5√n 52.488384850589

Divisors of 398396987

1, 239, 1666933, 398396987

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 -398396986
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 398396987 can be divided by 4 positive divisors. The sum of these divisors (counting 398396987) is 1, the average is 0.25.

Base conversion 398396987

Base System Value
2 Binary 10111101111110000111000111011
3 Ternary 1000202122122220222
4 Quaternary 113233300320323
5 Quinary 1303442200422
6 Senary 103311010255
8 Octal 2757607073
10 Decimal 398396987
12 Duodecimal b150998b
16 Hexadecimal 17bf0e3b
20 Vigesimal 649jc97
36 Base36 6l712z

Cryptographic Hash Functions

md5 a9e1e15f43dbf5d6cbd6c309aef82069
sha1 e847589eded9c7d8d39c610cb2d0ac3d57ba013e
sha256 849a2165084e492a838b4b94a6b0609d60fee1b58838ad387984a21a258e9056
sha512 2249c17065fcb6280883a83b3ad9698a6785d56927f2978a728b58ff663553fb5ed7c4960b4d6459c87c80ffd95160ae926dd1e8caa80412751af4e27660e1a6
ripemd-160 c6fc649addb03de33f5808b14029e5024027e0e0

398396987 as geometric shapes

Circle

Radius = n
Diameter 796793974
Circumference 2503202095.143
Area 4.9863408627853E+17

Sphere

Radius = n
Volume 2.6487242345182E+26
Surface area 1.9945363451141E+18
Circumference 2503202095.143

Square

Length = n
Perimeter 1593587948
Area 158720159250678169
Diagonal 563418422.22398

Cube

Length = n
Surface area 952320955504069014
Volume 6.323363322163E+25
Space diagonal 690043823.06636

Equilateral Triangle

Length = n
Perimeter 1195190961
Area 6.8727845001899E+16
Altitude 345021911.53318

Triangular Pyramid

Length = n
Surface area 6.8727845001899E+16
Volume 7.4521551416796E+24
Height 187806140.74133