1397918991 (number)

1397918991 is an odd 10-digits composite number following 1397918990 and preceding 1397918992. In scientific notation, it is written as 1.397918991 × 10^9. The sum of its digits is 57. It has a total of 4 prime factors and 16 positive divisors. There are 773040240 positive integers (up to 1397918991) that are relatively prime to 1397918991.

Interesting facts

Basic properties

Name

Name one billion three hundred ninety-seven million nine hundred eighteen thousand nine hundred ninety-one

Notation

Scientific notation 1.397918991 × 10^9
Engineering notation 1.397918991 × 10^9

Prime Factorization of 1397918991

Prime Factorization 21 × 7 × 31 × 306763

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1397918991
Product of the distinct prime numbers

The prime factorization of 1397918991 is 21 × 7 × 31 × 306763. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 9, 61, 68, 391, 545, 6888, 6556, 19657, 22243, 956067, 241458, 5529151, 8673690, 32786801, 97666717, 244659242, 956867914, 8802924406, 8849480445

Basic calculations (n = 1397918991)

Multiplication

n×y
n×2 2795837982
n×3 4193756973
n×4 5591675964
n×5 6989594955

Division

n÷y
n÷2 698959495.5
n÷3 465972997
n÷3 349479747.75
n÷5 279583798.2

Exponentiation

ny
n2 1954177505398458081
n3 2.7317818465815E+27
n4 3.8188097226053E+36
n5 5.3383866342454E+45

Nth Root

y√n
2√n 37388.754873625
3√n 1118.1343810851
4√n 193.3617202903
5√n 67.467777028726

Divisors of 1397918991

1, 7, 21, 31, 147, 217, 651, 4557, 306763, 2147341, 6442023, 9509653, 45094161, 66567571, 199702713, 1397918991

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 -1397918990
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 1397918991 can be divided by 16 positive divisors. The sum of these divisors (counting 1397918991) is 1, the average is 0.0625.

Base conversion 1397918991

Base System Value
2 Binary 1010011010100101000110100001111
3 Ternary 10121102102122100110
4 Quaternary 1103110220310033
5 Quinary 10330331401431
6 Senary 350414131103
8 Octal 12324506417
10 Decimal 1397918991
12 Duodecimal 3301b0a93
16 Hexadecimal 53528d0f
20 Vigesimal 11ggjh9b
36 Base36 n4a973

Cryptographic Hash Functions

md5 41e4c52c4328b20dc82a56848537be73
sha1 54a1d347d50e754459f5671f3061784d6d820bc4
sha256 0895d0c25aa19d91970a8837c008e27190ff086971fec4d33a3c7acae7596b8e
sha512 71896a251a216a90ad4fc0193f6f1139eee0469373100478f080eff6a73b018aaf9468dc8027efea8a6f3c9c4002e1d12540ee97d6d1fdc4aa9ed2527b623e43
ripemd-160 ff71c569542dba5a3d160e80a535f0e32be01e38

1397918991 as geometric shapes

Circle

Radius = n
Diameter 2795837982
Circumference 8783384064.8785
Area 6.1392296947702E+18

Sphere

Radius = n
Volume 1.1442861040574E+28
Surface area 2.4556918779081E+19
Circumference 8783384064.8785

Square

Length = n
Perimeter 5591675964
Area 1954177505398458081
Diagonal 1976955996.1711

Cube

Length = n
Surface area 1.1725065032391E+19
Volume 2.7317818465815E+27
Space diagonal 2421266717.2774

Equilateral Triangle

Length = n
Perimeter 4193756973
Area 8.4618368158958E+17
Altitude 1210633358.6387

Triangular Pyramid

Length = n
Surface area 8.4618368158958E+17
Volume 3.2194357807335E+26
Height 658985332.05704