Properties of the Number 42161

Forty-Two Thousand One Hundred Sixty-One

Basics

Value: 42160 → 42161 → 42162

Parity: odd

Prime: No

Previous Prime: 42157

Next Prime: 42169

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 7 × 19 × 317

Divisors: 1, 7, 19, 133, 317, 2219, 6023, 42161

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010010110001

Octal: 122261

Duodecimal: 20495

Hexadecimal: a4b1

Square: 1777549921

Square Root: 205.33143938520473

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

The base 10 numbers with a digit product > 0 and which when written in bases 3,4,5,6,7,8,9 have two or more other base representations with the same digit product. A331565

Number of essentially series unoriented series-parallel networks with n elements. A339223

Number of 4-tuples (w,x,y,z) with all terms in {1,...,n} and w·x >= 2·y*z. A211809

Number of nondecreasing arrangements of n numbers in -3..3 with sum zero and sum of squares not greater than n·12/3. A183921

Partial sums of A065641. A174202

a(n) = smallest number that is the sum of 2n - 1, 2n + 1, and 2n + 3 consecutive primes. A288172

T(n,k)=Number of nondecreasing arrangements of n+2 numbers in 0..k with each number being the sum mod (k+1) of two others. A183912

Denominators of continued fraction convergents to sqrt(605). A42161