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678275142 = 23294782939
BaseRepresentation
bin101000011011011…
…010100001000110
31202021021221120120
4220123122201012
52342114301032
6151145442410
722544146356
oct5033324106
91667257516
10678275142
11318961176
1216b1a0406
13aa6a3b4c
1466120b66
153e83062c
hex286da846

678275142 has 32 divisors (see below), whose sum is σ = 1433203200. Its totient is φ = 213648288.

The previous prime is 678275131. The next prime is 678275183. The reversal of 678275142 is 241572876.

It is a junction number, because it is equal to n+sod(n) for n = 678275094 and 678275103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33292 + ... + 49647.

It is an arithmetic number, because the mean of its divisors is an integer number (44787600).

Almost surely, 2678275142 is an apocalyptic number.

678275142 is an abundant number, since it is smaller than the sum of its proper divisors (754928058).

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

678275142 is a wasteful number, since it uses less digits than its factorization.

678275142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83020.

The product of its digits is 188160, while the sum is 42.

The square root of 678275142 is about 26043.7159790994. The cubic root of 678275142 is about 878.6217846061.

The spelling of 678275142 in words is "six hundred seventy-eight million, two hundred seventy-five thousand, one hundred forty-two".

Divisors: 1 2 3 6 29 47 58 87 94 141 174 282 1363 2726 4089 8178 82939 165878 248817 497634 2405231 3898133 4810462 7215693 7796266 11694399 14431386 23388798 113045857 226091714 339137571 678275142