Properties of the Number 42976

Forty-Two Thousand Nine Hundred Seventy-Six

Basics

Value: 42975 → 42976 → 42977

Parity: even

Prime: No

Previous Prime: 42967

Next Prime: 42979

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 ⁵ × 17 × 79

Divisors: 1, 2, 4, 8, 16, 17, 32, 34, 68, 79

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010011111100000

Octal: 123740

Duodecimal: 20A54

Hexadecimal: a7e0

Square: 1846936576

Square Root: 207.306536317599

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

Number of n X n rational {0,1}-matrices of determinant 0. A46747

T(n,k) is the number of (n+1) X (k+1) 0..2 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant-stress 1 X 1 tilings). A234266

Triangle T(n,k) read by rows, where T(n,k) = number of times the determinant of a real n X n (0,1)-matrix takes the value k, for n >= 0, 0 <= k <= A003432(n). A89478

Lesser of a pair of amicable numbers k < m such that s(k) = m and s(m) = k, where s(k) = A162296(k) - k is the sum of aliquot divisors of k that have a square factor. A357495

Diagonal of A129819. A130668

Convolution of the prime numbers with φ(n). A86734

Number of (n+1) X (1+1) 0..2 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant-stress 1 X 1 tilings). A234259

a(n) = number of (0,1) matrices of size n X n whose determinants are k, where -L <= k <= +L and L = A003432(n). A94813

Decimal expansion of 0.121121112...². A42976