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Properties of the Number 70841

Seventy Thousand Eight Hundred Forty-One

Basics

Value: 70840 → 70841 → 70842

Parity: odd

Prime: Yes

Previous Prime: 70823

Next Prime: 70843

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 70841

Divisors: 1, 70841

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001010010111001

Octal: 212271

Duodecimal: 34BB5

Hexadecimal: 114b9

Square: 5018447281

Square Root: 266.159726480172

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

Constant term of the reduction by x2 -> x+1 of the polynomial p(n,x) defined below in Comments. A192746
Primes equal to an octagonal number plus 1. A285792
Lesser of twin primes for which φ(p-1) < φ(p+1). A286715
a(n+1) is the smallest prime > a(n) such that the digits of a(n) are all (with multiplicity) contained in the digits of a(n+1), with a(1)=7. A242907
Primitive prime factors of the cyclotomic polynomial sequence φ(7,k) in the order in which they occur. A256146
Initial members of prime quadruples (n, n+2, n+36, n+38). A248367
Prime numbers p such that 3·p - 2 is the square of a prime number. A289135
a(n) = (10·n3 - 9·n2 + 2·n)/3 + 1. A34721
Number of n X 2 binary arrays indicating whether each 2 X 2 subblock of a larger binary array has lexicographically nondecreasing rows and columns, for some larger (n+1) X 3 binary array with rows and columns of the latter in lexicographically nondecreasing order. A227252
a(n) is the number of decompositions of F(n,1) into disjoint unions of F(j,k) and G(q,r) where F(j,k) is the set of numbers { i·k, 0 <= i <= j } and where G(q,r) is the set of numbers { (2·p-1)*r, 1 <= p <= q }. A335631