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203084239 = 439746187
BaseRepresentation
bin11000001101011…
…01000111001111
3112011010202012111
430012231013033
5403442143424
632052444451
75014121221
oct1406550717
9464122174
10203084239
11a46aa216
1258019727
13330c70b7
141cd86411
1512c68194
hexc1ad1cf

203084239 has 4 divisors (see below), whose sum is σ = 203134824. Its totient is φ = 203033656.

The previous prime is 203084207. The next prime is 203084243. The reversal of 203084239 is 932480302.

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 203084239 - 25 = 203084207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203084239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203084249) 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, 18697 + ... + 27490.

It is an arithmetic number, because the mean of its divisors is an integer number (50783706).

Almost surely, 2203084239 is an apocalyptic number.

203084239 is a deficient number, since it is larger than the sum of its proper divisors (50585).

203084239 is an equidigital number, since it uses as much as digits as its factorization.

203084239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50584.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 203084239 is about 14250.7627515161. The cubic root of 203084239 is about 587.7943491959.

The spelling of 203084239 in words is "two hundred three million, eighty-four thousand, two hundred thirty-nine".

Divisors: 1 4397 46187 203084239