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1313027 = 11291163
BaseRepresentation
bin101000000100100000011
32110201010122
411000210003
5314004102
644050455
714106032
oct5004403
92421118
101313027
11817551
12533a2b
1336c851
14262719
151ae0a2
hex140903

1313027 has 4 divisors (see below), whose sum is σ = 1315320. Its totient is φ = 1310736.

The previous prime is 1312967. The next prime is 1313041. The reversal of 1313027 is 7203131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7203131 = 13554087.

It is a cyclic number.

It is not a de Polignac number, because 1313027 - 26 = 1312963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312996 and 1313014.

It is not an unprimeable number, because it can be changed into a prime (1313057) 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, 548 + ... + 1710.

It is an arithmetic number, because the mean of its divisors is an integer number (328830).

21313027 is an apocalyptic number.

1313027 is a deficient number, since it is larger than the sum of its proper divisors (2293).

1313027 is a wasteful number, since it uses less digits than its factorization.

1313027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 1313027 is about 1145.8739023121. The cubic root of 1313027 is about 109.5026305464.

Subtracting from 1313027 its sum of digits (17), we obtain a triangular number (1313010 = T1620).

Adding to 1313027 its reverse (7203131), we get a palindrome (8516158).

The spelling of 1313027 in words is "one million, three hundred thirteen thousand, twenty-seven".

Divisors: 1 1129 1163 1313027