Properties of the Number 16925

Sixteen Thousand Nine Hundred Twenty-Five

Basics

Value: 16924 → 16925 → 16926

Parity: odd

Prime: No

Previous Prime: 16921

Next Prime: 16927

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 ² × 677

Divisors: 1, 5, 25, 677, 3385, 16925

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 100001000011101

Octal: 41035

Duodecimal: 9965

Hexadecimal: 421d

Square: 286455625

Square Root: 130.09611831257686

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

Numbers k such that k and k + 1 are both Niven numbers in base 3/2 (A342426). A342427

a(n) = n³ - n² + n - 1 = (n-1) * (n² + 1). A62158

Fixed points in A376198. A376201

G.f.: ∑_k>=1 x^2·k-1/(1+x^2·k-1) * ∏_k>=1 1/(1-x^k). A305123

Number of partitions of n into parts not of the form 13k, 13k+5 or 13k-5. Also number of partitions with at most 4 parts of size 1 and differences between parts at distance 5 are greater than 1. A35953

Triangle read by rows: T(n,k) = number of rooted maps with n vertices and k faces on a non-orientable surface of type 3/2 (0 <= k <= n). A214337

Number of trees that have a maximum 'n'. A168542

Number of subsets of the first n numbers having a common divisor greater than 1. A109511

a(n) = ∑_k=0..n binomial(n,k) * binomial(3·n+3·k,k). A388726

Indices of even terms in A249064. A249557