Properties of the Number 63973

Sixty-Three Thousand Nine Hundred Seventy-Three

Basics

Value: 63972 → 63973 → 63974

Parity: odd

Prime: No

Previous Prime: 63949

Next Prime: 63977

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 7 × 13 × 19 × 37

Divisors: 1, 7, 13, 19, 37, 91, 133, 247, 259, 481

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111100111100101

Octal: 174745

Duodecimal: 31031

Hexadecimal: f9e5

Square: 4092544729

Square Root: 252.92884374859267

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

Carmichael numbers: composite numbers k such that a^k-1 == 1 (mod k) for every a coprime to k. A2997

Euler pseudoprimes to base 3: composite integers such that abs(3^{(n - 1}/2)) == 1 mod n. A262051

Base-3 Euler-Jacobi pseudoprimes. A48950

Pseudoprimes to both base 2 and base 3, i.e., intersection of A001567 and A005935. A52155

Pseudoprimes to bases 2, 3 and 5. A83737

Carmichael numbers with exactly 4 prime factors. A74379

Composite numbers n such that gcd(φ(n), n-1) = λ(n), where λ(n) = A002322(n). A264012

Composite numbers k == 1, 11 (mod 12) such that 3^(k-1/2) == 1 (mod k). A375917

Numbers k such that φ(k) is a perfect sixth power. A78166

Carmichael numbers with more than 3 prime factors. A141711