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1396493 = 7199499
BaseRepresentation
bin101010100111100001101
32121221121222
411110330031
5324141433
645533125
714604260
oct5247415
92557558
101396493
1187422a
125741a5
1339b837
14284cd7
151c8b98
hex154f0d

1396493 has 4 divisors (see below), whose sum is σ = 1596000. Its totient is φ = 1196988.

The previous prime is 1396487. The next prime is 1396513. The reversal of 1396493 is 3946931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3946931 = 11093559.

It is a cyclic number.

It is not a de Polignac number, because 1396493 - 26 = 1396429 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396433) 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, 99743 + ... + 99756.

It is an arithmetic number, because the mean of its divisors is an integer number (399000).

21396493 is an apocalyptic number.

It is an amenable number.

1396493 is a deficient number, since it is larger than the sum of its proper divisors (199507).

1396493 is an equidigital number, since it uses as much as digits as its factorization.

1396493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199506.

The product of its digits is 17496, while the sum is 35.

The square root of 1396493 is about 1181.7330493813. The cubic root of 1396493 is about 111.7754055750.

The spelling of 1396493 in words is "one million, three hundred ninety-six thousand, four hundred ninety-three".

Divisors: 1 7 199499 1396493