Properties of the Number 84139

Eighty-Four Thousand One Hundred Thirty-Nine

Basics

Value: 84138 → 84139 → 84140

Parity: odd

Prime: No

Previous Prime: 84137

Next Prime: 84143

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 11 × 7649

Divisors: 1, 11, 7649, 84139

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100100010101011

Octal: 244253

Duodecimal: 40837

Hexadecimal: 148ab

Square: 7079371321

Square Root: 290.06723358559475

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

Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n and having k UDL's (n >= 0; 0 <= k <= floor((n+1)/2)). A128728

The hyper-Wiener index of the straight pentachain of n pentagonal rings (see Fig. 2.1 in the A. A. Ali et al. reference). A224460

Concatenation of prime factors of n is a cube. A38841

a(n) is the largest number for which exactly n primes are bounded between a(n) and 2a(n) exclusively. A84139