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205427119 = 1129918181
BaseRepresentation
bin11000011111010…
…01000110101111
3112022112210000211
430033221012233
5410042131434
632215003251
75043046612
oct1417510657
9468483024
10205427119
11a5a5a487
1258969527
1333737611
141d3d6179
151307c464
hexc3e91af

205427119 has 4 divisors (see below), whose sum is σ = 205456600. Its totient is φ = 205397640.

The previous prime is 205427093. The next prime is 205427129. The reversal of 205427119 is 911724502.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 205427119 - 29 = 205426607 is a prime.

It is a super-2 number, since 2×2054271192 = 84400602441280322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205427129) 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, 2209 + ... + 20389.

It is an arithmetic number, because the mean of its divisors is an integer number (51364150).

Almost surely, 2205427119 is an apocalyptic number.

205427119 is a deficient number, since it is larger than the sum of its proper divisors (29481).

205427119 is a wasteful number, since it uses less digits than its factorization.

205427119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29480.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 205427119 is about 14332.7289446218. The cubic root of 205427119 is about 590.0460741573.

The spelling of 205427119 in words is "two hundred five million, four hundred twenty-seven thousand, one hundred nineteen".

Divisors: 1 11299 18181 205427119