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142712 = 2317839
BaseRepresentation
bin100010110101111000
321020202122
4202311320
514031322
63020412
71133033
oct426570
9236678
10142712
1198249
126a708
134cc5b
143a01a
152c442
hex22d78

142712 has 8 divisors (see below), whose sum is σ = 267600. Its totient is φ = 71352.

The previous prime is 142711. The next prime is 142733. The reversal of 142712 is 217241.

142712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8912 + ... + 8927.

It is an arithmetic number, because the mean of its divisors is an integer number (33450).

2142712 is an apocalyptic number.

It is an amenable number.

142712 is a deficient number, since it is larger than the sum of its proper divisors (124888).

142712 is a wasteful number, since it uses less digits than its factorization.

142712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17845 (or 17841 counting only the distinct ones).

The product of its digits is 112, while the sum is 17.

The square root of 142712 is about 377.7724182626. The cubic root of 142712 is about 52.2580857888.

Adding to 142712 its reverse (217241), we get a palindrome (359953).

Subtracting 142712 from its reverse (217241), we obtain a square (74529 = 2732).

The spelling of 142712 in words is "one hundred forty-two thousand, seven hundred twelve", and thus it is an iban number.

Divisors: 1 2 4 8 17839 35678 71356 142712