Properties of the Number 90426

Ninety Thousand Four Hundred Twenty-Six

Basics

Value: 90425 → 90426 → 90427

Parity: even

Prime: No

Previous Prime: 90407

Next Prime: 90437

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 7 × 2153

Divisors: 1, 2, 3, 6, 7, 14, 21, 42, 2153, 4306

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10110000100111010

Octal: 260472

Duodecimal: 443B6

Hexadecimal: 1613a

Square: 8176861476

Square Root: 300.7091618158649

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 6X2 integer matrices with each row summing to zero, row elements in nondecreasing order, rows in lexicographically nondecreasing order, and the sum of squares of the elements <= 2·n² (number of collections of 6 zero-sum 2-vectors with total modulus squared not more than 2·n², ignoring vector and component permutations). A192706

a(1) = 1, otherwise a(n) = floor(πⁿ⁺¹/(π² + 1)). A90426

Number of strings of n digits from 1...9 such that a signed summation of the digits exists making the sum = 0. A288550