Properties of the Number 25472

Twenty-Five Thousand Four Hundred Seventy-Two

Basics

Value: 25471 → 25472 → 25473

Parity: even

Prime: No

Previous Prime: 25471

Next Prime: 25523

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ⁷ × 199

Divisors: 1, 2, 4, 8, 16, 32, 64, 128, 199, 398

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110001110000000

Octal: 61600

Duodecimal: 128A8

Hexadecimal: 6380

Square: 648822784

Square Root: 159.59949874608003

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 primitive n-bead necklaces (turning over is allowed) where complements are equivalent. A46

Greater 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. A357496

The internal state of the Sinclair ZX81 and Spectrum random number generator. A357907

First subsequent, disjoint occurrence of n consecutive nonprimes. A60064

a(n) = ((2+sqrt(5))*(1+sqrt(5))ⁿ + (2-sqrt(5))*(1-sqrt(5))ⁿ)/2. A162770

Smallest integer that is the sum of a prime and the square of a prime in n or more ways. A381333

Number of primitive (period n) bracelet structures using exactly two different colored beads. A56366

Number of arrangements of 4 nonzero numbers x(i) in -n..n with the sum of x(i)*x(i+1) equal to zero. A188250

Number of (4+2) X (n+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 2 3 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 2 3 6 or 7. A252536

a(n) is the least k such that A295520(k) = n. A295793