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272143 = 713833
BaseRepresentation
bin1000010011100001111
3111211022101
41002130033
532202033
65455531
72212264
oct1023417
9454271
10272143
11176513
121115a7
1396b41
147126b
155597d
hex4270f

272143 has 4 divisors (see below), whose sum is σ = 276048. Its totient is φ = 268240.

The previous prime is 272141. The next prime is 272171. The reversal of 272143 is 341272.

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 272143 - 21 = 272141 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 272143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1846 + ... + 1987.

It is an arithmetic number, because the mean of its divisors is an integer number (69012).

2272143 is an apocalyptic number.

272143 is a deficient number, since it is larger than the sum of its proper divisors (3905).

272143 is an equidigital number, since it uses as much as digits as its factorization.

272143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3904.

The product of its digits is 336, while the sum is 19.

The square root of 272143 is about 521.6732693938. The cubic root of 272143 is about 64.8035885581.

The spelling of 272143 in words is "two hundred seventy-two thousand, one hundred forty-three", and thus it is an iban number.

Divisors: 1 71 3833 272143