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8312142 = 2310091373
BaseRepresentation
bin11111101101010101001110
3120122022010010
4133231111032
54111442032
6454054050
7130436436
oct37552516
916568103
108312142
114768043
12294a326
131950537
1411652c6
15ae2ccc
hex7ed54e

8312142 has 16 divisors (see below), whose sum is σ = 16652880. Its totient is φ = 2765952.

The previous prime is 8312137. The next prime is 8312147. The reversal of 8312142 is 2412138.

It is an interprime number because it is at equal distance from previous prime (8312137) and next prime (8312147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8312147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5368 + ... + 6740.

It is an arithmetic number, because the mean of its divisors is an integer number (1040805).

Almost surely, 28312142 is an apocalyptic number.

8312142 is an abundant number, since it is smaller than the sum of its proper divisors (8340738).

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

8312142 is a wasteful number, since it uses less digits than its factorization.

8312142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387.

The product of its digits is 384, while the sum is 21.

The square root of 8312142 is about 2883.0785629254. The cubic root of 8312142 is about 202.5680673478.

The spelling of 8312142 in words is "eight million, three hundred twelve thousand, one hundred forty-two".

Divisors: 1 2 3 6 1009 1373 2018 2746 3027 4119 6054 8238 1385357 2770714 4156071 8312142