31127981 (number)

31127981 is an odd 8-digits prime number following 31127980 and preceding 31127982. In scientific notation, it is written as 3.1127981 × 10^7. The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors. There are 31127980 positive integers (up to 31127981) that are relatively prime to 31127981.

Interesting facts

Basic properties

Name

Name thirty-one million one hundred twenty-seven thousand nine hundred eighty-one

Notation

Scientific notation 3.1127981 × 10^7
Engineering notation 3.1127981 × 10^6

Prime Factorization of 31127981

Prime Factorization 31127981

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 31127981
Product of the distinct prime numbers

The prime factorization of 31127981 is 31127981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

1, 7, 21, 50, 978, 654, 2856, 9928, 87779, 73266, 571372, 429095, 9885670, 1452873, 34846421, 75837374, 634107764, 935500350, 5744766104, 5238665700

Basic calculations (n = 31127981)

Multiplication

n×y
n×2 62255962
n×3 93383943
n×4 124511924
n×5 155639905

Division

n÷y
n÷2 15563990.5
n÷3 10375993.666667
n÷3 7781995.25
n÷5 6225596.2

Exponentiation

ny
n2 968951201136361
n3 3.01614945789E+22
n4 9.388664301836E+29
n5 2.9225016400293E+37

Nth Root

y√n
2√n 5579.245558317
3√n 314.56976958706
4√n 74.694347566044
5√n 31.523192244457

Divisors of 31127981

1, 31127981

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 31127982
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 15563991
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 5579.2456479349
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999357491
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31127981 can be divided by 2 positive divisors. The sum of these divisors (counting 31127981) is 31127982, the average is 15563991.

Base conversion 31127981

Base System Value
2 Binary 1110110101111100110101101
3 Ternary 2011120110120012
4 Quaternary 1312233212231
5 Quinary 30432043411
6 Senary 3031103005
8 Octal 166574655
10 Decimal 31127981
12 Duodecimal a511a65
16 Hexadecimal 1daf9ad
20 Vigesimal 9eajj1
36 Base36 ij6i5

Cryptographic Hash Functions

md5 8d634b9434257ef238bd1ebd1c6b1ee6
sha1 7d44f58448f6bd3a56d8ea908dac84f306f91ec8
sha256 53916bf8734bab280781244a685a38db5fe568f401c1af16e10bd9c530415571
sha512 e0ab613cf0ae0b4cffaa09aac99343bcb52bce61d92604c33b196f38296e2f9c518961d516d43d26fe7b1ab136690aed87e3a298bec6803c7a05a8046c459244
ripemd-160 b94f12291a8d598f57236bd04c18852bf0d2f327

31127981 as geometric shapes

Circle

Radius = n
Diameter 62255962
Circumference 195582872.86137
Area 3.044049975177E+15

Sphere

Radius = n
Volume 1.2634017305381E+23
Surface area 1.2176199900708E+16
Circumference 195582872.86137

Square

Length = n
Perimeter 124511924
Area 968951201136361
Diagonal 44021612.899492

Cube

Length = n
Surface area 5813707206818166
Volume 3.01614945789E+22
Space diagonal 53915244.629039

Equilateral Triangle

Length = n
Perimeter 93383943
Area 4.1956817760577E+14
Altitude 26957622.314519

Triangular Pyramid

Length = n
Surface area 4.1956817760577E+14
Volume 3.5545662245769E+21
Height 14673870.966497