Properties of the Number 1695

One Thousand Six Hundred Ninety-Five

Basics

Value: 1694 → 1695 → 1696

Parity: odd

Prime: No

Previous Prime: 1693

Next Prime: 1697

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 113

Divisors: 1, 3, 5, 15, 113, 339, 565, 1695

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11010011111

Octal: 3237

Duodecimal: B93

Hexadecimal: 69f

Square: 2873025

Square Root: 41.1703777004778

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 partitions of n into prime parts. A607

a(n) = n*(n² + 1)/2. A6003

Number of flat partitions of n: partitions {a_i} with each |a_i - a_i-1| <= 1. A34296

Rhombic dodecahedral numbers: a(n) = n⁴ - (n - 1)⁴. A5917

Square array of nexus numbers a(n,k) = (n+1)^k+1 - n^k+1 (n >= 0, k >= 0) read by upwards antidiagonals. A47969

Integers of the form m*(m + 7)/8. A274979

Pentanacci numbers with initial conditions a(0)=5, a(1)=1, a(2)=3, a(3)=7, a(4)=15. A74048

18-gonal (or octadecagonal) numbers: a(n) = n*(8·n-7). A51870

a(n) = (1/2)*(n³ + n*(n mod 2)). A317614

4-dimensional analog of centered polygonal numbers. A6322