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Properties of the Number 22575

Twenty-Two Thousand Five Hundred Seventy-Five

Basics

Value: 22574 → 22575 → 22576

Parity: odd

Prime: No

Previous Prime: 22573

Next Prime: 22613

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 2 × 7 × 43

Divisors: 1, 3, 5, 7, 15, 21, 25, 35, 43, 75

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101100000101111

Octal: 54057

Duodecimal: 11093

Hexadecimal: 582f

Square: 509630625

Square Root: 150.2497920131672

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 permutations of n distinct letters (ABCD...) each of which appears 5 times and having n-2 fixed points. A123296
Triangle read by rows: T(n,k) is the number of regions between the free polyominoes, with n cells and length k, and their bounding boxes, n >= 1, k >= 1. A380284
Triangle in A144643 read by columns downwards. A144644
a(n) = A351477(n) * FC where F is the Fermat point of a primitive integer-sided triangle ABC with A < B < C < 2*π/3 and FA + FB + FC = A336329(n). A351803
a(n) = ∑k=1..n prime(k)*prime(k+1). A74745
Numbers k such that k and k+1 are both φ-practical numbers (A260653). A330871
Triangle in A144643 read upwards by columns. A144645
Number of ballot sequences of length n having exactly one descent. A241794
a(n) = 3*(3·n+1)*(9·n+8)/2. A304504
The smallest number in base n such that two digits (and no fewer) need to be changed to get a prime. A370531