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142725 = 35211173
BaseRepresentation
bin100010110110000101
321020210010
4202312011
514031400
63020433
71133052
oct426605
9236703
10142725
1198260
126a719
134cc6b
143a029
152c450
hex22d85

142725 has 24 divisors (see below), whose sum is σ = 258912. Its totient is φ = 68800.

The previous prime is 142711. The next prime is 142733. The reversal of 142725 is 527241.

It is not a de Polignac number, because 142725 - 28 = 142469 is a prime.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

142725 is a lucky 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 142725.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 739 + ... + 911.

It is an arithmetic number, because the mean of its divisors is an integer number (10788).

2142725 is an apocalyptic number.

142725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142725 is a deficient number, since it is larger than the sum of its proper divisors (116187).

142725 is a wasteful number, since it uses less digits than its factorization.

142725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 192 counting only the distinct ones).

The product of its digits is 560, while the sum is 21.

The square root of 142725 is about 377.7896239973. The cubic root of 142725 is about 52.2596725147.

Adding to 142725 its reverse (527241), we get a palindrome (669966).

The spelling of 142725 in words is "one hundred forty-two thousand, seven hundred twenty-five".

Divisors: 1 3 5 11 15 25 33 55 75 165 173 275 519 825 865 1903 2595 4325 5709 9515 12975 28545 47575 142725