The Number

42857

Forty-Two Thousand Eight Hundred and Fifty-Seven

In Base 21 Unovigesimal Is

4d3h21

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

For more familiar numbers: See Forty-Two Thousand Eight Hundred and Fifty-Seven in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

42854
4d3e21
Forty-Two Thousand Eight Hundred and Fifty-Four in Base 21 Unovigesimal
42855
4d3f21
Forty-Two Thousand Eight Hundred and Fifty-Five in Base 21 Unovigesimal
42856
4d3g21
Forty-Two Thousand Eight Hundred and Fifty-Six in Base 21 Unovigesimal
42858
4d3i21
Forty-Two Thousand Eight Hundred and Fifty-Eight in Base 21 Unovigesimal
42859
4d3j21
Forty-Two Thousand Eight Hundred and Fifty-Nine in Base 21 Unovigesimal
42860
4d3k21
Forty-Two Thousand Eight Hundred and Sixty in Base 21 Unovigesimal

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

4.2857e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0004b64b6i34ag4821

The reciprocal of 42857 in Base 21 Unovigesimal.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 4d3h21 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Forty-two thousand eight hundred and fifty-seven is a composite number with 4 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Forty-two thousand eight hundred and fifty-seven is a composite number with 4 total factors (including 1 and itself).

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number forty-two thousand eight hundred and fifty-seven has the following 2 prime factors:

17
h21
Seventeen in Base 21 Unovigesimal
2521
5f121
Two Thousand Five Hundred and Twenty-One in Base 21 Unovigesimal

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

h211 · 5f1211 = 4d3h21

Base Conversions

The number forty-two thousand eight hundred and fifty-seven in 35 different bases