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1313142 = 23218857
BaseRepresentation
bin101000000100101110110
32110201021220
411000211312
5314010032
644051210
714106255
oct5004566
92421256
101313142
11817646
12533b06
1336c90c
1426279c
151ae12c
hex140976

1313142 has 8 divisors (see below), whose sum is σ = 2626296. Its totient is φ = 437712.

The previous prime is 1313141. The next prime is 1313153. The reversal of 1313142 is 2413131.

It is a sphenic number, since it is the product of 3 distinct primes.

1313142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313141) 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, 109423 + ... + 109434.

It is an arithmetic number, because the mean of its divisors is an integer number (328287).

21313142 is an apocalyptic number.

1313142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313142 is a wasteful number, since it uses less digits than its factorization.

1313142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218862.

The product of its digits is 72, while the sum is 15.

The square root of 1313142 is about 1145.9240812549. The cubic root of 1313142 is about 109.5058273415.

Adding to 1313142 its reverse (2413131), we get a palindrome (3726273).

The spelling of 1313142 in words is "one million, three hundred thirteen thousand, one hundred forty-two".

Divisors: 1 2 3 6 218857 437714 656571 1313142