The Number

648140

Six Hundred and Forty-Eight Thousand One Hundred and Forty

In Base 21 Unovigesimal Is

36keh21

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

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

Nearby Numbers

Positive, nonzero integers within three units

648137
36kee21
Six Hundred and Forty-Eight Thousand One Hundred and Thirty-Seven in Base 21 Unovigesimal
648138
36kef21
Six Hundred and Forty-Eight Thousand One Hundred and Thirty-Eight in Base 21 Unovigesimal
648139
36keg21
Six Hundred and Forty-Eight Thousand One Hundred and Thirty-Nine in Base 21 Unovigesimal
648141
36kei21
Six Hundred and Forty-Eight Thousand One Hundred and Forty-One in Base 21 Unovigesimal
648142
36kej21
Six Hundred and Forty-Eight Thousand One Hundred and Forty-Two in Base 21 Unovigesimal
648143
36kek21
Six Hundred and Forty-Eight Thousand One Hundred and Forty-Three in Base 21 Unovigesimal

Scientific Notation

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

6.48140e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000666i010f84di621

The reciprocal of 648140 in Base 21 Unovigesimal.

Palindrome?

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

The number 36keh21 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-eight thousand one hundred and forty is a composite number with 24 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Six hundred and forty-eight thousand one hundred and forty is a composite number with 24 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-eight thousand one hundred and forty has the following 4 prime factors:

2
221
Two in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
23
1221
Twenty-Three in Base 21 Unovigesimal
1409
34221
One Thousand Four Hundred and Nine in Base 21 Unovigesimal

Prime Factorization

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

2212 · 5211 · 12211 · 342211 = 36keh21

Base Conversions

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