Properties of the Number 78253

Seventy-Eight Thousand Two Hundred Fifty-Three

Basics

Value: 78252 → 78253 → 78254

Parity: odd

Prime: No

Previous Prime: 78241

Next Prime: 78259

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 7 ² × 1597

Divisors: 1, 7, 49, 1597, 11179, 78253

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011000110101101

Octal: 230655

Duodecimal: 39351

Hexadecimal: 131ad

Square: 6123532009

Square Root: 279.7373768376332

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

a(n) = 2ⁿ + 5ⁿ. A74600

Numbers that are the sum of 2 positive 7th powers. A3369

Sum of the 7th powers of the primes dividing n. A351195

a(n) = n⁷ * ∑_{p∣n, p prime} 1/p⁷. A351247

Numbers that can be represented as a⁷ + b⁷, with 0 < a < b, in exactly one way. A88719

T(m, n) is the number of m X n period knot/link mosaics read by rows, with 1 <= n <= m. A375355

Triangle T(n,m,p,q) = (p^n-k*q^k + p^k*q^n-k)*(StirlingS2(n, k) + StirlingS2(n, n-k)) with p=2 and q=5, read by rows. A154922

Numbers that are sums of seventh powers of two distinct primes. A132214

Sum of 7th powers of digits of n. A123253

Expansion of (1/x) * Series_Reversion( x * (1-x) / (1+x³)² ). A369266