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Properties of the Number 42198

Forty-Two Thousand One Hundred Ninety-Eight

Basics

Value: 42197 → 42198 → 42199

Parity: even

Prime: No

Previous Prime: 42197

Next Prime: 42209

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 13 × 541

Divisors: 1, 2, 3, 6, 13, 26, 39, 78, 541, 1082

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1010010011010110

Octal: 122326

Duodecimal: 20506

Hexadecimal: a4d6

Square: 1780671204

Square Root: 205.42151786022808

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

Recurrence sequence derived from the digits of the square root of 3 after its decimal point. A120482
Numbers k such that k and k+1 are both divisible by the total binary weight of their divisors (A093653). A338514
Numbers n such that Bernoulli number Bn has denominator 3318. A272383
Numbers k such that 95·2k-1 is prime. A50573
Number of walks within N3 (the first octant of Z3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (0, 0, 1), (0, 1, 1), (1, 1, 0), (1, 1, 1)}. A151249
Number of involutions of doubly alternating Baxter permutations of length n. A347546
Numerators of continued fraction convergents to sqrt(624). A42198
Number of (7+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 2 3 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 2 3 4 6 or 7. A252414
Number of (7+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 2 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 2 4 6 or 7. A252440