Properties of the Number 42958

Forty-Two Thousand Nine Hundred Fifty-Eight

Basics

Value: 42957 → 42958 → 42959

Parity: even

Prime: No

Previous Prime: 42953

Next Prime: 42961

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 × 47 × 457

Divisors: 1, 2, 47, 94, 457, 914, 21479, 42958

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1010011111001110

Octal: 123716

Duodecimal: 20A3A

Hexadecimal: a7ce

Square: 1845389764

Square Root: 207.2631177995738

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 partitions p of n such that (number of numbers in p that have multiplicity 1) > (number of numbers in p having multiplicity > 1). A329976

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays x(i,j) with row sums sum{j⁴*x(i,j), j=1..k+1} nondecreasing, and column sums sum{i⁴*x(i,j), i=1..n+1} nondecreasing. A232763

Index in A375564 where n-th group of successive primes ends. A376196

Number of (n+1)X(1+1) 0..3 arrays x(i,j) with row sums sum{j⁴*x(i,j), j=1..1+1} nondecreasing, and column sums sum{i⁴*x(i,j), i=1..n+1} nondecreasing. A232760

Numbers k such that the number of primes between k and 2k (inclusive) is equal to the number of primes between k and reverse(k) (inclusive). A74814

a(1) = 1, a(2) = 2; for n > 2, a(n) is the smallest unused positive number that is coprime to a(n-1) if a(n-1) is prime, otherwise a(n) shares a factor with a(n-1). A375564

The sequence d when b=[ 1,1,1,1,0,1,1,1,.. ]. A42958