Properties of the Number -135

One Hundred Thirty-Five

Basics

Value: -136 → -135 → -134

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 5

Divisors: 1, 3, 5, 9, 15, 27, 45, 135

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10000111

Octal: -207

Duodecimal: -B3

Hexadecimal: -87

Square: 18225

Square Root: 11.61895003862225

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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

a(n) = (n+1)*(2-n)/2. A80956

Triangle read by rows: coefficients T(n,k) of a binomial decomposition of 2ⁿ-1 as Sum(k=0..n)T(n,k)*binomial(n,k). A244124

Triangle read by rows: coefficients T(n,k) of a binomial decomposition of n*(-1)ⁿ as Sum(k=0..n)T(n,k)*binomial(n,k). A244140

Triangle read by rows: terms T(n,k) of a binomial decomposition of n*(-1)ⁿ as Sum(k=0..n)T(n,k). A244141

Dirichlet inverse of the gcd-sum function (A018804). A101035

Coefficients for step-by-step integration. A2405

Irregular triangle read by rows: mean version of Girard-Waring formula A210258, for m = 3 data values. A287768

Determinant of the n X n matrix whose element (i,j) equals the |i-j|-th prime or if i=j, 0. A71079

Inverse Euler transform applied once to {1,-1,0,0,0,...}, twice to {1,0,0,0,0,...}, or three times to {1,1,1,1,1,...}. A320767

Expansion of g.f. 1+x+(1+3·x+x²)/(1+x)³. A201163