31897989 (number)

31897989 is an odd 8-digits composite number following 31897988 and preceding 31897990. In scientific notation, it is written as 3.1897989 × 10^7. The sum of its digits is 54. It has a total of 2 prime factors and 4 positive divisors. There are 21265308 positive integers (up to 31897989) that are relatively prime to 31897989.

Interesting facts

Basic properties

Name

Name thirty-one million eight hundred ninety-seven thousand nine hundred eighty-nine

Notation

Scientific notation 3.1897989 × 10^7
Engineering notation 3.1897989 × 10^6

Prime Factorization of 31897989

Prime Factorization 27 × 1181407

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 31897989
Product of the distinct prime numbers

The prime factorization of 31897989 is 27 × 1181407. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 4, 88, 1, 826, 768, 7788, 7948, 89801, 18984, 552114, 274704, 2246474, 21688, 51813514, 61816980, 367034018, 53255749, 3638749224, 2983992166

Basic calculations (n = 31897989)

Multiplication

n×y
n×2 63795978
n×3 95693967
n×4 127591956
n×5 159489945

Division

n÷y
n÷2 15948994.5
n÷3 10632663
n÷3 7974497.25
n÷5 6379597.8

Exponentiation

ny
n2 1017481702244121
n3 3.2455620145884E+22
n4 1.0352690144016E+30
n5 3.3022999633423E+37

Nth Root

y√n
2√n 5647.8304684188
3√n 317.14249217322
4√n 75.152048996809
5√n 31.677628462412

Divisors of 31897989

1, 27, 1181407, 31897989

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 -31897988
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 31897989 can be divided by 4 positive divisors. The sum of these divisors (counting 31897989) is 1, the average is 0.25.

Base conversion 31897989

Base System Value
2 Binary 1111001101011100110000101
3 Ternary 2020000120211000
4 Quaternary 1321223212011
5 Quinary 31131213424
6 Senary 3055403513
8 Octal 171534605
10 Decimal 31897989
12 Duodecimal a823599
16 Hexadecimal 1e6b985
20 Vigesimal 9j74j9
36 Base36 izon9

Cryptographic Hash Functions

md5 ac04c46e309cf453cd1776008b9d1cb2
sha1 71ee38fa93faee199c94a7676db013dc292bb915
sha256 8779d23015faea3af092f94d0ad4a89e0a8987955e6d704e38cffd3e7d2eec75
sha512 386aa2e647b03ea53a1cf69a75d489ebb30e76875e1f2e6e54812ea626d449daccf3f940b5a1d3bd17243e1ceddc0217a5808b798dcd546e505453063b186c80
ripemd-160 ae64fbdff45e67be2119f198ee1a7e585301f871

31897989 as geometric shapes

Circle

Radius = n
Diameter 63795978
Circumference 200420975.81338
Area 3.1965130409322E+15

Sphere

Radius = n
Volume 1.3594978375735E+23
Surface area 1.2786052163729E+16
Circumference 200420975.81338

Square

Length = n
Perimeter 127591956
Area 1017481702244121
Diagonal 45110568.656228

Cube

Length = n
Surface area 6104890213464726
Volume 3.2455620145884E+22
Space diagonal 55248937.607273

Equilateral Triangle

Length = n
Perimeter 95693967
Area 4.4058250101462E+14
Altitude 27624468.803637

Triangular Pyramid

Length = n
Surface area 4.4058250101462E+14
Volume 3.8249315154616E+21
Height 15036856.218743