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1315142 = 21953653
BaseRepresentation
bin101000001000101000110
32110211000222
411001011012
5314041032
644104342
714115143
oct5010506
92424028
101315142
118190a4
125350b2
133707ba
142633ca
151aea12
hex141146

1315142 has 16 divisors (see below), whose sum is σ = 2118960. Its totient is φ = 610272.

The previous prime is 1315087. The next prime is 1315151. The reversal of 1315142 is 2415131.

It is a self number, because there is not a number n which added to its sum of digits gives 1315142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1688 + ... + 2340.

It is an arithmetic number, because the mean of its divisors is an integer number (132435).

21315142 is an apocalyptic number.

1315142 is a deficient number, since it is larger than the sum of its proper divisors (803818).

1315142 is a wasteful number, since it uses less digits than its factorization.

1315142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727.

The product of its digits is 120, while the sum is 17.

The square root of 1315142 is about 1146.7964073889. The cubic root of 1315142 is about 109.5613939543.

The spelling of 1315142 in words is "one million, three hundred fifteen thousand, one hundred forty-two".

Divisors: 1 2 19 38 53 106 653 1007 1306 2014 12407 24814 34609 69218 657571 1315142