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7238142 = 2323791061
BaseRepresentation
bin11011100111000111111110
3111121201212100
4123213013332
53323110032
6415045530
7115344312
oct33470776
914551770
107238142
1140a413a
1225108a6
131665732
14d65b42
1597e97c
hex6e71fe

7238142 has 24 divisors (see below), whose sum is σ = 15738840. Its totient is φ = 2404080.

The previous prime is 7238131. The next prime is 7238149. The reversal of 7238142 is 2418327.

It is a super-2 number, since 2×72381422 = 104781399224328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7238149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6292 + ... + 7352.

It is an arithmetic number, because the mean of its divisors is an integer number (655785).

Almost surely, 27238142 is an apocalyptic number.

7238142 is an abundant number, since it is smaller than the sum of its proper divisors (8500698).

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

7238142 is a wasteful number, since it uses less digits than its factorization.

7238142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448 (or 1445 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 7238142 is about 2690.3795271300. The cubic root of 7238142 is about 193.4382552431.

The spelling of 7238142 in words is "seven million, two hundred thirty-eight thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 379 758 1061 1137 2122 2274 3183 3411 6366 6822 9549 19098 402119 804238 1206357 2412714 3619071 7238142