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205119433 = 1741294289
BaseRepresentation
bin11000011100111…
…01111111001001
3112021222010222001
430032131333021
5410002310213
632204231001
75040325561
oct1416357711
9467863861
10205119433
11a586a2a2
125883b461
133365a55c
141d355da1
151301b1dd
hexc39dfc9

205119433 has 8 divisors (see below), whose sum is σ = 222483240. Its totient is φ = 188344320.

The previous prime is 205119427. The next prime is 205119437. The reversal of 205119433 is 334911502.

It can be written as a sum of positive squares in 4 ways, for example, as 2569609 + 202549824 = 1603^2 + 14232^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-205119433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205119437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146448 + ... + 147841.

It is an arithmetic number, because the mean of its divisors is an integer number (27810405).

Almost surely, 2205119433 is an apocalyptic number.

It is an amenable number.

205119433 is a deficient number, since it is larger than the sum of its proper divisors (17363807).

205119433 is a wasteful number, since it uses less digits than its factorization.

205119433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294347.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 205119433 is about 14321.9912372547. The cubic root of 205119433 is about 589.7513392439.

The spelling of 205119433 in words is "two hundred five million, one hundred nineteen thousand, four hundred thirty-three".

Divisors: 1 17 41 697 294289 5002913 12065849 205119433