Search a number
-
+
1380927 = 31727077
BaseRepresentation
bin101010001001000111111
32121011021110
411101020333
5323142202
645333103
714511012
oct5211077
92534243
101380927
11863569
12567193
13394722
1427d379
151c426c
hex15123f

1380927 has 8 divisors (see below), whose sum is σ = 1949616. Its totient is φ = 866432.

The previous prime is 1380913. The next prime is 1380931. The reversal of 1380927 is 7290831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1380927 - 28 = 1380671 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1380894 and 1380903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13488 + ... + 13589.

It is an arithmetic number, because the mean of its divisors is an integer number (243702).

21380927 is an apocalyptic number.

1380927 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1380927 is a deficient number, since it is larger than the sum of its proper divisors (568689).

1380927 is a wasteful number, since it uses less digits than its factorization.

1380927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27097.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 1380927 is about 1175.1285036114. The cubic root of 1380927 is about 111.3585516238.

The spelling of 1380927 in words is "one million, three hundred eighty thousand, nine hundred twenty-seven".

Divisors: 1 3 17 51 27077 81231 460309 1380927