145

145 = 5 × 29

145 = 12 + 3 + 45 + 6 + 7 + 8 × 9

145 = 98 + 7 + 6 × 5 + 4 + 3 + 2 + 1

145 = 0^5 + 1^7 + 2^9 − 3^8 + 4^6 + 5^0 + 6^4 + 7^1 + 8^2 + 9^3

145 = 1^2 + 12^2 = 8^2 + 9^2

145^2 = 17^2 + 144^2 = 24^2 + 143^2

145 divides 59^2 - 1.

145 = 1! + 4! + 5!

145 = (11 + 1)⁽¹⁺¹⁾ + 1

145 = (22/2)² + 22 + 2

145 = (3 + 3) × (3³ − 3) + 3/3

145 = 4⁴ − 444/4

145 = 145 = 5 × (5 × 5 + 5) − 5

145 = (6 + 6) × (6 + 6) + 6/6

145 = 7 × (7 + 7 + 7) − (7 + 7)/7

145 = 88 + 8 × 8 − 8 + 8/8

145 = 9 × (9 + 9) − 9 − 9 + 9/9

Pentagonal number: a(n) = n*(3*n-1)/2. n = 10

Number of ordered pairs of integers (x,y) with x^2+y^2 < 7^2

145 = 1^2 + 12^2 = 8^2 + 9^2

145^2 = 17^2 + 144^2 = 24^2 + 143^2

Numbers k such that (35*10^k - 11)/3 is prime

Periodic point of the Sum of squares of digits Function

Semiprime (Product of 2 Primes)

Sqrt(145) = 12 + 1/(24 + 1/(24 + 1/(24 + 1/(24 + 1/(24 + 1/(24 + 1/(24 + 1/(24 + 1/(24 + 1/(24 + 1/(24 + 1/(24 + 1/(24 + 1/...))))))))))))) =

12.041594578792295480128241030378608052425352405053833952072433324...

Factors: 1, 5, 29, 145

One hundred forty-five

Representations, Binary to Hexadecimal:

10010001_2
12101_3
2101_4
1040_5
401_6
265_7
221_8
171_9
122_11
101_12
b2_13
a5_14
9a_15
91_16

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