Properties of the Number 42169

Forty-Two Thousand One Hundred Sixty-Nine

Basics

Value: 42168 → 42169 → 42170

Parity: odd

Prime: Yes

Previous Prime: 42157

Next Prime: 42179

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 42169

Divisors: 1, 42169

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010010111001

Octal: 122271

Duodecimal: 204A1

Hexadecimal: a4b9

Square: 1778224561

Square Root: 205.35091916034852

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 integer partitions of n such that every pair of distinct parts has a different quotient. A325853

K-bit primes p such that p-2ⁱ and p+2ⁱ are composite for 0<=i<=K-1. A153352

Primes of the form x² + 5·y², where·and y=x+1 are consecutive natural numbers. A176608

Primes p such that, if q is the next prime, p + q² is a prime times a power of 10. A352837

Smallest prime dividing the composite near-repdigit number 133...33 consisting of a 1 followed by n 3's, where n=A105427. A105428

Numerators of coefficients in a series for the first Stieltjes constant gamma₁. A332536

Depression-type primes with five digits; from left to right digits decrease to and increase from the central digit. A157083

Denominators of continued fraction convergents to sqrt(609). A42169