The Number

640142

Six Hundred and Forty Thousand One Hundred and Forty-Two

In Base 11 Undecimal Is

3a7a4811

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

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

Nearby Numbers

Positive, nonzero integers within three units

640139
3a7a4511
Six Hundred and Forty Thousand One Hundred and Thirty-Nine in Base 11 Undecimal
640140
3a7a4611
Six Hundred and Forty Thousand One Hundred and Forty in Base 11 Undecimal
640141
3a7a4711
Six Hundred and Forty Thousand One Hundred and Forty-One in Base 11 Undecimal
640143
3a7a4911
Six Hundred and Forty Thousand One Hundred and Forty-Three in Base 11 Undecimal
640144
3a7a4a11
Six Hundred and Forty Thousand One Hundred and Forty-Four in Base 11 Undecimal
640145
3a7a5011
Six Hundred and Forty Thousand One 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.

6.40142e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00000284952660695438711

The reciprocal of 640142 in Base 11 Undecimal.

Palindrome?

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

The number 3a7a4811 is not a palindrome.

Not A Prime Number

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

Six hundred and forty thousand one hundred and forty-two is a composite number with 8 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

Six hundred and forty thousand one hundred and forty-two is a composite number with 8 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 six hundred and forty thousand one hundred and forty-two has the following 3 prime factors:

2
211
Two in Base 11 Undecimal
263
21a11
Two Hundred and Sixty-Three in Base 11 Undecimal
1217
a0711
One Thousand Two Hundred and Seventeen 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 · 21a111 · a07111 = 3a7a4811

Base Conversions

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