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1427207 = 9191553
BaseRepresentation
bin101011100011100000111
32200111202112
411130130013
5331132312
650331235
715062645
oct5343407
92614675
101427207
11895311
12589b1b
133ac802
14292195
151d2d22
hex15c707

1427207 has 4 divisors (see below), whose sum is σ = 1429680. Its totient is φ = 1424736.

The previous prime is 1427191. The next prime is 1427221. The reversal of 1427207 is 7027241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7027241 = 13540557.

It is a cyclic number.

It is not a de Polignac number, because 1427207 - 24 = 1427191 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 (1427227) 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, 143 + ... + 1695.

It is an arithmetic number, because the mean of its divisors is an integer number (357420).

21427207 is an apocalyptic number.

1427207 is a deficient number, since it is larger than the sum of its proper divisors (2473).

1427207 is an equidigital number, since it uses as much as digits as its factorization.

1427207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 1427207 is about 1194.6576915585. The cubic root of 1427207 is about 112.5889206446.

The spelling of 1427207 in words is "one million, four hundred twenty-seven thousand, two hundred seven".

Divisors: 1 919 1553 1427207