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205472416 = 256421013
BaseRepresentation
bin11000011111101…
…00001010100000
3112022122002011111
430033310022200
5410100104131
632215553104
75043325642
oct1417641240
9468562144
10205472416
11a5a90516
125898b794
1333752116
141d408892
151308aab1
hexc3f42a0

205472416 has 12 divisors (see below), whose sum is σ = 404523882. Its totient is φ = 102736192.

The previous prime is 205472383. The next prime is 205472417. The reversal of 205472416 is 614274502.

It can be written as a sum of positive squares in only one way, i.e., 169520400 + 35952016 = 13020^2 + 5996^2 .

It is not an unprimeable number, because it can be changed into a prime (205472417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3210475 + ... + 3210538.

Almost surely, 2205472416 is an apocalyptic number.

It is an amenable number.

205472416 is a deficient number, since it is larger than the sum of its proper divisors (199051466).

205472416 is an equidigital number, since it uses as much as digits as its factorization.

205472416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6421023 (or 6421015 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 205472416 is about 14334.3090520611. The cubic root of 205472416 is about 590.0894396632.

The spelling of 205472416 in words is "two hundred five million, four hundred seventy-two thousand, four hundred sixteen".

Divisors: 1 2 4 8 16 32 6421013 12842026 25684052 51368104 102736208 205472416