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2804142 = 231142487
BaseRepresentation
bin1010101100100110101110
312021110120010
422230212232
51204213032
6140034050
732556225
oct12544656
95243503
102804142
111645880
12b32926
13772473
1452dcbc
153a5ccc
hex2ac9ae

2804142 has 16 divisors (see below), whose sum is σ = 6118272. Its totient is φ = 849720.

The previous prime is 2804141. The next prime is 2804143. The reversal of 2804142 is 2414082.

It is an interprime number because it is at equal distance from previous prime (2804141) and next prime (2804143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2804141) 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, 21178 + ... + 21309.

It is an arithmetic number, because the mean of its divisors is an integer number (382392).

22804142 is an apocalyptic number.

2804142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2804142 is an abundant number, since it is smaller than the sum of its proper divisors (3314130).

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

2804142 is a wasteful number, since it uses less digits than its factorization.

2804142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42503.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 2804142 is about 1674.5572549184. The cubic root of 2804142 is about 141.0154401883.

The spelling of 2804142 in words is "two million, eight hundred four thousand, one hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 42487 84974 127461 254922 467357 934714 1402071 2804142