The Number

1278

One Thousand Two Hundred and Seventy-Eight

In Base 21 Unovigesimal Is

2ii21

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

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

Nearby Numbers

Positive, nonzero integers within three units

1275
2if21
One Thousand Two Hundred and Seventy-Five in Base 21 Unovigesimal
1276
2ig21
One Thousand Two Hundred and Seventy-Six in Base 21 Unovigesimal
1277
2ih21
One Thousand Two Hundred and Seventy-Seven in Base 21 Unovigesimal
1279
2ij21
One Thousand Two Hundred and Seventy-Nine in Base 21 Unovigesimal
1280
2ik21
One Thousand Two Hundred and Eighty in Base 21 Unovigesimal
1281
2j021
One Thousand Two Hundred and Eighty-One in Base 21 Unovigesimal

Scientific Notation

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

1.278e3

Reciprocal

A number multiplied with its reciprocal is one.

0.00753ed9ci3khj421

The reciprocal of 1278 in Base 21 Unovigesimal.

Palindrome?

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

The number 2ii21 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 seventy-eight is a composite number with 12 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

One thousand two hundred and seventy-eight is a composite number with 12 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 seventy-eight has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
71
3821
Seventy-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

2211 · 3212 · 38211 = 2ii21

Base Conversions

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