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Properties of the Number 20146

Twenty Thousand One Hundred Forty-Six

Basics

Value: 20145 → 20146 → 20147

Parity: even

Prime: No

Previous Prime: 20143

Next Prime: 20147

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 7 × 1439

Divisors: 1, 2, 7, 14, 1439, 2878, 10073, 20146

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 100111010110010

Octal: 47262

Duodecimal: B7AA

Hexadecimal: 4eb2

Square: 405861316

Square Root: 141.9366055674152

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 σ(k) = σ(k-1). A231546
4-dimensional centered tetrahedral numbers. A8498
Table of consecutive numbers with the same sum of divisors. A225757
Numbers m such that product of factorials of digits of m equals σ(m). A137603
Number of conjugacy classes of elements of order n in E8(C). A45514
Numbers k that divide σ(k) - σ(k-1). A227307
Number of nX5 0..1 arrays with every element equal to 1, 2, 4 or 7 king-move adjacent elements, with upper left element zero. A298090
Number of walks within N3 (the first octant of Z3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (0, 1, -1), (0, 1, 1), (1, 0, 0), (1, 1, 0)}. A151137
The number of permutations of length n sortable by 2 prefix block transpositions. A228394
Partial quotients of the continued fraction of the constant A119812 defined by binary sums involving Beatty sequences: c = ∑n>=1 A049472(n)/2n = ∑n>=1 1/2A001951(n). A119813