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1427995 = 5285599
BaseRepresentation
bin101011100101000011011
32200112211201
411130220123
5331143440
650335031
715065152
oct5345033
92615751
101427995
11895968
1258a477
133acc8a
14292599
151d319a
hex15ca1b

1427995 has 4 divisors (see below), whose sum is σ = 1713600. Its totient is φ = 1142392.

The previous prime is 1427969. The next prime is 1427999. The reversal of 1427995 is 5997241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5997241 = 52311467.

It is a cyclic number.

It is not a de Polignac number, because 1427995 - 25 = 1427963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1427999) 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 3 ways as a sum of consecutive naturals, for example, 142795 + ... + 142804.

It is an arithmetic number, because the mean of its divisors is an integer number (428400).

21427995 is an apocalyptic number.

1427995 is a deficient number, since it is larger than the sum of its proper divisors (285605).

1427995 is an equidigital number, since it uses as much as digits as its factorization.

1427995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285604.

The product of its digits is 22680, while the sum is 37.

The square root of 1427995 is about 1194.9874476328. The cubic root of 1427995 is about 112.6096379725.

The spelling of 1427995 in words is "one million, four hundred twenty-seven thousand, nine hundred ninety-five".

Divisors: 1 5 285599 1427995