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1397283 = 3465761
BaseRepresentation
bin101010101001000100011
32121222201020
411111020203
5324203113
645540523
714606466
oct5251043
92558636
101397283
11874888
12574743
1339bcc4
142852dd
151c9023
hex155223

1397283 has 4 divisors (see below), whose sum is σ = 1863048. Its totient is φ = 931520.

The previous prime is 1397267. The next prime is 1397287. The reversal of 1397283 is 3827931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3827931 = 31275977.

It is a cyclic number.

It is not a de Polignac number, because 1397283 - 24 = 1397267 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1397287) 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, 232878 + ... + 232883.

It is an arithmetic number, because the mean of its divisors is an integer number (465762).

21397283 is an apocalyptic number.

1397283 is a deficient number, since it is larger than the sum of its proper divisors (465765).

1397283 is an equidigital number, since it uses as much as digits as its factorization.

1397283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465764.

The product of its digits is 9072, while the sum is 33.

The square root of 1397283 is about 1182.0672569698. The cubic root of 1397283 is about 111.7964788217.

The spelling of 1397283 in words is "one million, three hundred ninety-seven thousand, two hundred eighty-three".

Divisors: 1 3 465761 1397283