Properties of the Number 70815

Seventy Thousand Eight Hundred Fifteen

Basics

Value: 70814 → 70815 → 70816

Parity: odd

Prime: No

Previous Prime: 70793

Next Prime: 70823

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 4721

Divisors: 1, 3, 5, 15, 4721, 14163, 23605, 70815

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10001010010011111

Octal: 212237

Duodecimal: 34B93

Hexadecimal: 1149f

Square: 5014764225

Square Root: 266.11087914626864

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

Indices of the start of 10 successive distinct digits in the decimal expansion of π. A258157

Number of -2..2 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^t+u+v) having one, two, three, four, five or six distinct values for every i,j,k<=n. A211581

Solutions to φ(gpf(x)) - gpf(φ(x)) = 254 = c are special multiples of 257, x = 257k, where largest prime factors of factor k were observed from {2, 3, 5, 17}. See solutions to other even cases of c (=A070813): A007283 for 0, A070004 for 2, A070814 for 14, A070816 for 65534. A70815