Properties of the Number 70665

Seventy Thousand Six Hundred Sixty-Five

Basics

Value: 70664 → 70665 → 70666

Parity: odd

Prime: No

Previous Prime: 70663

Next Prime: 70667

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 7 × 673

Divisors: 1, 3, 5, 7, 15, 21, 35, 105, 673, 2019

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10001010000001001

Octal: 212011

Duodecimal: 34A89

Hexadecimal: 11409

Square: 4993542225

Square Root: 265.8288923349003

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

Generalized ordered Bell numbers Bo(7,n). A238464

Expansion of 1/sqrt((1-3·x)³ * (1-7·x)). A383948

a(n) counts anti-chains of size four in "0,1,2" Motzkin trees on n edges. A335355

T(2n,n-1), T given by A026568. A26575

T(n, k) = F(n - k, k), where F(n, x) is the Fubini polynomial. Triangle read by rows, T(n, k) for 0 <= k <= n. A344499

a(n) = n⁶ mod 42. A70665