Properties of the Number -173

One Hundred Seventy-Three

Basics

Value: -174 → -173 → -172

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 173

Divisors: 1, 173

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10101101

Octal: -255

Duodecimal: -125

Hexadecimal: -ad

Square: 29929

Square Root: 13.152946437965905

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Numerators of terms in series expansion of arctan(arcsin(x)). A96719

a(n) = prime(n)-n*τ(n) where τ(n) is the number of divisors of n. A67292

a(n) = ∑_{d divides n} (-1)^{d + n/d} * d². A321558

Expansion of (1-x+x²)/((x²+x+1)*(x²+5·x+1)). A110310

Sequence is {a(5,n)}, where a(m,n) is defined at sequence A111518. A111523

Expansion of -(3 - x + 2·x²) / (1 - x³ + x⁴). A110063

Solution to a(1) = 1 and Sum_y Product_i a(y_i) = 0 for each n > 1, where the sum is over all relatively prime or monic partitions of n. A302917

Partial sums of A073579. A77039

Expansion of 1/(1+x+x²+2·x³). A77976

Prime scale sequence (see comments). A332341