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142463 = 1091307
BaseRepresentation
bin100010110001111111
321020102102
4202301333
514024323
63015315
71132226
oct426177
9236372
10142463
1198042
126a53b
134cac9
1439cbd
152c328
hex22c7f

142463 has 4 divisors (see below), whose sum is σ = 143880. Its totient is φ = 141048.

The previous prime is 142453. The next prime is 142469. The reversal of 142463 is 364241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142463 - 210 = 141439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545 + ... + 762.

It is an arithmetic number, because the mean of its divisors is an integer number (35970).

2142463 is an apocalyptic number.

142463 is a deficient number, since it is larger than the sum of its proper divisors (1417).

142463 is a wasteful number, since it uses less digits than its factorization.

142463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416.

The product of its digits is 576, while the sum is 20.

The square root of 142463 is about 377.4427108847. The cubic root of 142463 is about 52.2276752685.

The spelling of 142463 in words is "one hundred forty-two thousand, four hundred sixty-three".

Divisors: 1 109 1307 142463