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142275 = 3527271
BaseRepresentation
bin100010101111000011
321020011110
4202233003
514023100
63014403
71131540
oct425703
9236143
10142275
1197991
126a403
134c9b3
1439bc7
152c250
hex22bc3

142275 has 24 divisors (see below), whose sum is σ = 269824. Its totient is φ = 64800.

The previous prime is 142271. The next prime is 142297. The reversal of 142275 is 572241.

142275 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 142275 - 22 = 142271 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

142275 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (142271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 390 + ... + 660.

2142275 is an apocalyptic number.

142275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142275 is a deficient number, since it is larger than the sum of its proper divisors (127549).

142275 is a wasteful number, since it uses less digits than its factorization.

142275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 286 counting only the distinct ones).

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

The square root of 142275 is about 377.1935842508. The cubic root of 142275 is about 52.2046912300.

The spelling of 142275 in words is "one hundred forty-two thousand, two hundred seventy-five".

Divisors: 1 3 5 7 15 21 25 35 75 105 175 271 525 813 1355 1897 4065 5691 6775 9485 20325 28455 47425 142275