Properties of the Number 74945

Seventy-Four Thousand Nine Hundred Forty-Five

Basics

Value: 74944 → 74945 → 74946

Parity: odd

Prime: No

Previous Prime: 74941

Next Prime: 74959

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 5 × 13 × 1153

Divisors: 1, 5, 13, 65, 1153, 5765, 14989, 74945

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10010010011000001

Octal: 222301

Duodecimal: 37455

Hexadecimal: 124c1

Square: 5616753025

Square Root: 273.7608445340568

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 n such that n is not an odd prime and not a square of prime and the n-th Motzkin number == 1 (mod n). A81736

Half the number of nXnXn triangular binary arrays with each element having no more than two neighbors equal to itself. A183275

Composite numbers m with sqrt(m) not prime such that T(m) == 1 (mod m), where the central trinomial coefficient T(m) is the coefficient of x^m in the expansion of (x²+x+1)^m. A279821

Number of k with 1<=k<=n such that gcd(n,k) = floor(n/k). A74945

Number of nX4 0..3 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 4, no adjacent elements equal, and upper left element zero. A231059