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142432 = 254451
BaseRepresentation
bin100010110001100000
321020101021
4202301200
514024212
63015224
71132153
oct426140
9236337
10142432
1198014
126a514
134caa4
1439c9a
152c307
hex22c60

142432 has 12 divisors (see below), whose sum is σ = 280476. Its totient is φ = 71200.

The previous prime is 142427. The next prime is 142433. The reversal of 142432 is 234241.

It is a hoax number, since the sum of its digits (16) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142433) by changing a digit.

142432 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2194 + ... + 2257.

It is an arithmetic number, because the mean of its divisors is an integer number (23373).

2142432 is an apocalyptic number.

It is an amenable number.

142432 is a deficient number, since it is larger than the sum of its proper divisors (138044).

142432 is an equidigital number, since it uses as much as digits as its factorization.

142432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4461 (or 4453 counting only the distinct ones).

The product of its digits is 192, while the sum is 16.

The square root of 142432 is about 377.4016428157. The cubic root of 142432 is about 52.2238867400.

Adding to 142432 its reverse (234241), we get a palindrome (376673).

Subtracting 142432 from its reverse (234241), we obtain a square (91809 = 3032).

The spelling of 142432 in words is "one hundred forty-two thousand, four hundred thirty-two".

Divisors: 1 2 4 8 16 32 4451 8902 17804 35608 71216 142432