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427142 = 2172739
BaseRepresentation
bin1101000010010000110
3210200221002
41220102012
5102132032
613053302
73426212
oct1502206
9720832
10427142
11271a11
12187232
1311c561
14b1942
1586862
hex68486

427142 has 12 divisors (see below), whose sum is σ = 681540. Its totient is φ = 200736.

The previous prime is 427117. The next prime is 427151. The reversal of 427142 is 241724.

427142 is nontrivially palindromic in base 16.

It is a congruent number.

It is an unprimeable number.

427142 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 209 + ... + 947.

It is an arithmetic number, because the mean of its divisors is an integer number (56795).

2427142 is an apocalyptic number.

427142 is a deficient number, since it is larger than the sum of its proper divisors (254398).

427142 is a wasteful number, since it uses less digits than its factorization.

427142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775 (or 758 counting only the distinct ones).

The product of its digits is 448, while the sum is 20.

The square root of 427142 is about 653.5610147492. The cubic root of 427142 is about 75.3108285471.

Adding to 427142 its reverse (241724), we get a palindrome (668866).

The spelling of 427142 in words is "four hundred twenty-seven thousand, one hundred forty-two", and thus it is an iban number.

Divisors: 1 2 17 34 289 578 739 1478 12563 25126 213571 427142