155645981 (number)

155645981 is an odd 9-digits prime number following 155645980 and preceding 155645982. In scientific notation, it is written as 1.55645981 × 10^8. The sum of its digits is 44. It has a total of 1 prime factors and 2 positive divisors. There are 155645980 positive integers (up to 155645981) that are relatively prime to 155645981.

Interesting facts

Basic properties

Name

Name one hundred fifty-five million six hundred forty-five thousand nine hundred eighty-one

Notation

Scientific notation 1.55645981 × 10^8
Engineering notation 1.55645981 × 10^6

Prime Factorization of 155645981

Prime Factorization 155645981

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 155645981
Product of the distinct prime numbers

The prime factorization of 155645981 is 155645981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

4, 9, 74, 98, 648, 295, 1695, 6611, 78041, 28479, 488737, 700480, 7236945, 919073, 90144202, 49933638, 965382958, 369158943, 7467399406, 2828183713

Basic calculations (n = 155645981)

Multiplication

n×y
n×2 311291962
n×3 466937943
n×4 622583924
n×5 778229905

Division

n÷y
n÷2 77822990.5
n÷3 51881993.666667
n÷3 38911495.25
n÷5 31129196.2

Exponentiation

ny
n2 24225671401452361
n3 3.7706283906627E+24
n4 5.8688315485115E+32
n5 9.1346004369182E+40

Nth Root

y√n
2√n 12475.815845066
3√n 537.91373920458
4√n 111.69519168284
5√n 43.493822945271

Divisors of 155645981

1, 155645981

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 155645982
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 77822991
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 12475.815885144
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999871503
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 155645981 can be divided by 2 positive divisors. The sum of these divisors (counting 155645981) is 155645982, the average is 77822991.

Base conversion 155645981

Base System Value
2 Binary 1001010001101111100000011101
3 Ternary 101211212122010222
4 Quaternary 21101233200131
5 Quinary 304321132411
6 Senary 23240011125
8 Octal 1121574035
10 Decimal 155645981
12 Duodecimal 44160aa5
16 Hexadecimal 946f81d
20 Vigesimal 28cfej1
36 Base36 2ko17h

Cryptographic Hash Functions

md5 1634cb5f05eb43720413c271e3964ade
sha1 13209afe079acde432031d2995bef0f90f05fd90
sha256 88d1d23330fa63c78ec55a864b316485aba16e382c0eaf67b4d6f1acd6b8c403
sha512 0a49bd26acebd74695eb3674ae4e51288879425f01621f45f25b115642a154fd6a216c3358398a0e6939bdf7a95f0bb8ec6ede676c4b095aac9e140de66c85c0
ripemd-160 0d413072b5bd25c66cbf3cbcde5445f7a8cb4339

155645981 as geometric shapes

Circle

Radius = n
Diameter 311291962
Circumference 977952540.94075
Area 7.6107191303083E+16

Sphere

Radius = n
Volume 1.5794371268697E+25
Surface area 3.0442876521233E+17
Circumference 977952540.94075

Square

Length = n
Perimeter 622583924
Area 24225671401452361
Diagonal 220116657.25907

Cube

Length = n
Surface area 145354028408714166
Volume 3.7706283906627E+24
Space diagonal 269586747.0859

Equilateral Triangle

Length = n
Perimeter 466937943
Area 1.0490023428696E+16
Altitude 134793373.54295

Triangular Pyramid

Length = n
Surface area 1.0490023428696E+16
Volume 4.4437281739535E+23
Height 73372219.086355