Properties of the Number 7995

Seven Thousand Nine Hundred Ninety-Five

Basics

Value: 7994 → 7995 → 7996

Parity: odd

Prime: No

Previous Prime: 7993

Next Prime: 8009

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 13 × 41

Divisors: 1, 3, 5, 13, 15, 39, 41, 65, 123, 195

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111100111011

Octal: 17473

Duodecimal: 4763

Hexadecimal: 1f3b

Square: 63920025

Square Root: 89.41476388158725

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 m that are the hypotenuse of exactly 13 distinct integer-sided right triangles, i.e., m² can be written as a sum of two squares in 13 ways. A97102

Sum T(n,k) of the entries in the k-th blocks of all set partitions of [n]; triangle T(n,k), n>=1, 1<=k<=n, read by rows. A285362

Numbers k such that k² divides 16^k-1. A128396

Smallest multiple of 5 with digit sum n. A69534

Number of ordered pairs of integer partitions of n where no part of the first is greater than any part of the second. A322439

a(n) = 5·n² + 10·n. A67724

T(n,k) = Number of (n+1) X (k+1) 0..2 arrays with the maximum plus the upper median plus the lower median of every 2 X 2 subblock equal. A236884

Total number of edges in graph formed by the straight line segments connecting the edges of an equilateral triangle with the n-1 points resulting from a subdivision of the sides into n equal pieces. A332376

a(n) = ceiling(n*(n+1)*(n+2)/8). A47866

a(n) is the number of different degrees in the sequence of the degrees of the irreducible representations of the symmetric group S_n, i.e., count each degree only once. A60437