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1427071 = 1975109
BaseRepresentation
bin101011100011001111111
32200111120111
411130121333
5331131241
650330451
715062362
oct5343177
92614514
101427071
118951a8
12589a27
133ac729
142920d9
151d2c81
hex15c67f

1427071 has 4 divisors (see below), whose sum is σ = 1502200. Its totient is φ = 1351944.

The previous prime is 1427047. The next prime is 1427089. The reversal of 1427071 is 1707241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1707241 = 16710223.

It is a cyclic number.

It is not a de Polignac number, because 1427071 - 25 = 1427039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37536 + ... + 37573.

It is an arithmetic number, because the mean of its divisors is an integer number (375550).

21427071 is an apocalyptic number.

1427071 is a deficient number, since it is larger than the sum of its proper divisors (75129).

1427071 is an equidigital number, since it uses as much as digits as its factorization.

1427071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75128.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 1427071 is about 1194.6007701320. The cubic root of 1427071 is about 112.5853442936.

It can be divided in two parts, 14270 and 71, that added together give a palindrome (14341).

The spelling of 1427071 in words is "one million, four hundred twenty-seven thousand, seventy-one".

Divisors: 1 19 75109 1427071