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204061240 = 2355101531
BaseRepresentation
bin11000010100110…
…11101000111000
3112012222101101201
430022123220320
5404214424430
632125423544
75025330505
oct1412335070
9465871351
10204061240
11a5207259
125840abb4
13333799c6
141d15c4ac
1512dac8ca
hexc29ba38

204061240 has 16 divisors (see below), whose sum is σ = 459137880. Its totient is φ = 81624480.

The previous prime is 204061229. The next prime is 204061241. The reversal of 204061240 is 42160402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204061241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2550726 + ... + 2550805.

Almost surely, 2204061240 is an apocalyptic number.

204061240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204061240 is an abundant number, since it is smaller than the sum of its proper divisors (255076640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204061240 is a wasteful number, since it uses less digits than its factorization.

204061240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5101542 (or 5101538 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 204061240 is about 14285.0005250262. Note that the first 3 decimals coincide. The cubic root of 204061240 is about 588.7354319236.

The spelling of 204061240 in words is "two hundred four million, sixty-one thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 5101531 10203062 20406124 25507655 40812248 51015310 102030620 204061240