Properties of the Number 70828

Seventy Thousand Eight Hundred Twenty-Eight

Basics

Value: 70827 → 70828 → 70829

Parity: even

Prime: No

Previous Prime: 70823

Next Prime: 70841

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 17707

Divisors: 1, 2, 4, 17707, 35414, 70828

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001010010101100

Octal: 212254

Duodecimal: 34BA4

Hexadecimal: 114ac

Square: 5016605584

Square Root: 266.13530393392006

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

Numbers k such that 75·2^k-1 is prime. A50563

Number of (n+1)X(4+1) 0..2 arrays with the upper median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one. A237633

a(1)=2, a(2)=3; then a(n+1) = smallest k such that S(k) = S(a(n)) + S(a(n-1)), (n>=2), where S is sopfr (A001414). A330988

Related to number of irreducible stick-cutting problems. A22541

Sum of prime factors of Catalan numbers A000108(n), n>=2, with n=0 and n=1 terms added. A70828