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142479 = 341759
BaseRepresentation
bin100010110010001111
321020110000
4202302033
514024404
63015343
71132251
oct426217
9236400
10142479
1198057
126a553
134cb0c
1439cd1
152c339
hex22c8f

142479 has 10 divisors (see below), whose sum is σ = 212960. Its totient is φ = 94932.

The previous prime is 142469. The next prime is 142501. The reversal of 142479 is 974241.

It is a happy number.

142479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142479 - 28 = 142223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142479.

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

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 799 + ... + 960.

It is an arithmetic number, because the mean of its divisors is an integer number (21296).

2142479 is an apocalyptic number.

142479 is a deficient number, since it is larger than the sum of its proper divisors (70481).

142479 is an equidigital number, since it uses as much as digits as its factorization.

142479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771 (or 1762 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 142479 is about 377.4639055592. The cubic root of 142479 is about 52.2296304230.

The spelling of 142479 in words is "one hundred forty-two thousand, four hundred seventy-nine".

Divisors: 1 3 9 27 81 1759 5277 15831 47493 142479