The Number

1240

One Thousand Two Hundred and Forty

In Base 11 Undecimal Is

a2811

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

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

Nearby Numbers

Positive, nonzero integers within three units

1237
a2511
One Thousand Two Hundred and Thirty-Seven in Base 11 Undecimal
1238
a2611
One Thousand Two Hundred and Thirty-Eight in Base 11 Undecimal
1239
a2711
One Thousand Two Hundred and Thirty-Nine in Base 11 Undecimal
1241
a2911
One Thousand Two Hundred and Forty-One in Base 11 Undecimal
1242
a2a11
One Thousand Two Hundred and Forty-Two in Base 11 Undecimal
1243
a3011
One Thousand Two Hundred and Forty-Three in Base 11 Undecimal

Scientific Notation

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

1.240e3

Reciprocal

A number multiplied with its reciprocal is one.

0.00108975079a42a332711

The reciprocal of 1240 in Base 11 Undecimal.

Palindrome?

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

The number a2811 is not 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 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 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 has the following 3 prime factors:

2
211
Two in Base 11 Undecimal
5
511
Five in Base 11 Undecimal
31
2911
Thirty-One in Base 11 Undecimal

Prime Factorization

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

2113 · 5111 · 29111 = a2811

Base Conversions

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