Properties of the Number 65660

Sixty-Five Thousand Six Hundred Sixty

Basics

Value: 65659 → 65660 → 65661

Parity: even

Prime: No

Previous Prime: 65657

Next Prime: 65677

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 5 × 7 ² × 67

Divisors: 1, 2, 4, 5, 7, 10, 14, 20, 28, 35

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000000001111100

Octal: 200174

Duodecimal: 31BB8

Hexadecimal: 1007c

Square: 4311235600

Square Root: 256.24207304812376

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

Sum of the prime parts in the partitions of n into 10 parts. A309471

Triangle read by rows: T(n, k) = (-1)^n-k*Stirling1(n, k)*CatalanNumber(k). A390723

Numerators of continued fraction convergents to sqrt(331). A41624

Exponential transform of Stirling1 triangle A008275. A55924

a(n) = ∑_d∣n d^d * binomial(n/d,d). A376014

Triangle read by rows, T(n, k) = Bell(k) * |Stirling1(n, k)|. A355260

Permutation of N induced by rotating the node 1 (the top node) right in the infinite planar binary tree shown at A065658. A65660