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204381607 = 834215849
BaseRepresentation
bin11000010111010…
…01110110100111
3112020120122212011
430023221312213
5404310202412
632140335051
75031133513
oct1413516647
9466518764
10204381607
11a5405a21
1258544487
133345c781
141d203143
1512e227a7
hexc2e9da7

204381607 has 8 divisors (see below), whose sum is σ = 207370800. Its totient is φ = 201405120.

The previous prime is 204381581. The next prime is 204381637. The reversal of 204381607 is 706183402.

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

It is a cyclic number.

It is not a de Polignac number, because 204381607 - 215 = 204348839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204381637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32019 + ... + 37867.

It is an arithmetic number, because the mean of its divisors is an integer number (25921350).

Almost surely, 2204381607 is an apocalyptic number.

204381607 is a deficient number, since it is larger than the sum of its proper divisors (2989193).

204381607 is an equidigital number, since it uses as much as digits as its factorization.

204381607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6353.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 204381607 is about 14296.2095325999. The cubic root of 204381607 is about 589.0433669113.

The spelling of 204381607 in words is "two hundred four million, three hundred eighty-one thousand, six hundred seven".

Divisors: 1 83 421 5849 34943 485467 2462429 204381607