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2642142 = 232112087
BaseRepresentation
bin1010000101000011011110
311222020100010
422011003132
51134022032
6132344050
731313016
oct12050336
94866303
102642142
111545098
12a75026
137167c9
144cac46
15372ccc
hex2850de

2642142 has 16 divisors (see below), whose sum is σ = 5311872. Its totient is φ = 876120.

The previous prime is 2642141. The next prime is 2642147. The reversal of 2642142 is 2412462.

It is a super-3 number, since 3×26421423 = 55333700993060181864, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642141) 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, 223 + ... + 2309.

It is an arithmetic number, because the mean of its divisors is an integer number (331992).

22642142 is an apocalyptic number.

2642142 is an abundant number, since it is smaller than the sum of its proper divisors (2669730).

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

2642142 is a wasteful number, since it uses less digits than its factorization.

2642142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303.

The product of its digits is 768, while the sum is 21.

The square root of 2642142 is about 1625.4667022120. The cubic root of 2642142 is about 138.2458336029.

The spelling of 2642142 in words is "two million, six hundred forty-two thousand, one hundred forty-two".

Divisors: 1 2 3 6 211 422 633 1266 2087 4174 6261 12522 440357 880714 1321071 2642142