Properties of the Number -9139

One Hundred Thirty-Nine

Basics

Value: -9140 → -9139 → -9138

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 13 × 19 × 37

Divisors: 1, 13, 19, 37, 247, 481, 703, 9139

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: Yes

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Representations

Binary: -10001110110011

Octal: -21663

Duodecimal: -5357

Hexadecimal: -23b3

Square: 83521321

Square Root: 95.59811713627

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

Tetrahedral (or triangular pyramidal) numbers: a(n) = C(n+2,3) = n*(n+1)*(n+2)/6. A292

a(n) = 1² + 3² + 5² + 7² + ... + (2·n-1)² = n*(4·n² - 1)/3. A447

Dodecahedral numbers: a(n) = n*(3·n - 1)*(3·n - 2)/2. A6566

Multiples of 13 containing a 13 in their decimal representation. A121033

Number of partitions of n such that the set of parts and the set of multiplicities of parts are disjoint. A114639

Odd tetrahedral numbers: a(n) = (4·n+1)*(4·n+2)*(4·n+3)/6. A15219

Numbers n whose square can be represented as a repdigit number in some base less than n. A158235

-5-Knödel numbers. A225509

a(n) = 4·binomial(9·n+4,n)/(9·n+4). A234507

Numbers k such that φ(k) is a perfect 5th power. A78165