Properties of the Number 45140

Forty-Five Thousand One Hundred Forty

Basics

Value: 45139 → 45140 → 45141

Parity: even

Prime: No

Previous Prime: 45139

Next Prime: 45161

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 5 × 37 × 61

Divisors: 1, 2, 4, 5, 10, 20, 37, 61, 74, 122

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1011000001010100

Octal: 130124

Duodecimal: 22158

Hexadecimal: b054

Square: 2037619600

Square Root: 212.46176126540982

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 positive integers <= 2ⁿ of form x² + 4 y². A72

Array A(T,k) read down antidiagonals: Number of typed decorated trees of cardinality T on k vertices with D=2 decorations. A384867

Numbers whose base-4 representation contains exactly one 2 and two 3's. A45140

Numbers n such that there is no prime of a prime twin pair between n² + n and n² + 3·n + 2. A246826