The Number

1242

One Thousand Two Hundred and Forty-Two

In Base 11 Undecimal Is

a2a11

The numbers with a 11 subscript use Base 11 Undecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

1239
a2711
One Thousand Two Hundred and Thirty-Nine in Base 11 Undecimal
1240
a2811
One Thousand Two Hundred and Forty in Base 11 Undecimal
1241
a2911
One Thousand Two Hundred and Forty-One in Base 11 Undecimal
1243
a3011
One Thousand Two Hundred and Forty-Three in Base 11 Undecimal
1244
a3111
One Thousand Two Hundred and Forty-Four in Base 11 Undecimal
1245
a3211
One Thousand Two Hundred and Forty-Five in Base 11 Undecimal

Scientific Notation

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

1.242e3

Reciprocal

A number multiplied with its reciprocal is one.

0.001087417676114111511

The reciprocal of 1242 in Base 11 Undecimal.

Palindrome?

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

The number a2a11 is a palindrome.

Not A Prime Number

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

One thousand two hundred and forty-two is a composite number with 16 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

One thousand two hundred and forty-two is a composite number with 16 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 one thousand two hundred and forty-two has the following 3 prime factors:

2
211
Two in Base 11 Undecimal
3
311
Three in Base 11 Undecimal
23
2111
Twenty-Three in Base 11 Undecimal

Prime Factorization

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

2111 · 3113 · 21111 = a2a11

Base Conversions

The number one thousand two hundred and forty-two in 35 different bases