The Number

1390

One Thousand Three Hundred and Ninety

In Base 7 Septenary Is

40247

The numbers with a 7 subscript use Base 7 Septenary notation.

For more familiar numbers: See One Thousand Three Hundred and Ninety in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

1387
40217
One Thousand Three Hundred and Eighty-Seven in Base 7 Septenary
1388
40227
One Thousand Three Hundred and Eighty-Eight in Base 7 Septenary
1389
40237
One Thousand Three Hundred and Eighty-Nine in Base 7 Septenary
1391
40257
One Thousand Three Hundred and Ninety-One in Base 7 Septenary
1392
40267
One Thousand Three Hundred and Ninety-Two in Base 7 Septenary
1393
40307
One Thousand Three Hundred and Ninety-Three in Base 7 Septenary

Scientific Notation

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

1.390e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0001504322414014412037

The reciprocal of 1390 in Base 7 Septenary.

Palindrome?

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

The number 40247 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 three hundred and ninety is a composite number with 8 total factors (including 1 and itself).   See primes in Base 7 Septenary

A Composite

Composites have more than just these two factors.

One thousand three hundred and ninety 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 one thousand three hundred and ninety has the following 3 prime factors:

2
27
Two in Base 7 Septenary
5
57
Five in Base 7 Septenary
139
2567
One Hundred and Thirty-Nine in Base 7 Septenary

Prime Factorization

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

271 · 571 · 25671 = 40247

Base Conversions

The number one thousand three hundred and ninety in 35 different bases