Properties of the Number 69378

Sixty-Nine Thousand Three Hundred Seventy-Eight

Basics

Value: 69377 → 69378 → 69379

Parity: even

Prime: No

Previous Prime: 69371

Next Prime: 69379

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 31 × 373

Divisors: 1, 2, 3, 6, 31, 62, 93, 186, 373, 746

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000111100000010

Octal: 207402

Duodecimal: 34196

Hexadecimal: 10f02

Square: 4813306884

Square Root: 263.3970387077273

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

Sum of the numbers in row n of the array at A242364. A243735

Numbers of the form prime(n) + prime(n+1) - 2 that are also triangular numbers, T(k) = k(k+1)/2. A110891

Triangular numbers n with digits d₁, d₂, ..., d_k such that d₁*(d₁+1)/2 + ... + d_k*(d_k+1)/2 is a triangular number. A254957

Triangle read by rows giving the coefficients of formulas generating each variety of S1(n,k) (unsigned Stirling numbers of first kind). The p-th row (p>=1) contains T(i,p) for i=1 to 2·p, where T(i,p) satisfies ∑_i=1..2·p T(i,p) * C(n,i). A94216

Number of n X 3 binary arrays with a path of adjacent 1's from top row to bottom row. A69378