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204770412 = 2232721161173
BaseRepresentation
bin11000011010010…
…00110001101100
3112021022102012100
430031020301230
5404410123122
632152535100
75034343200
oct1415106154
9467272170
10204770412
11a5651050
12586b1490
1333567732
141d2a4b00
1512e9caac
hexc348c6c

204770412 has 216 divisors, whose sum is σ = 671488272. Its totient is φ = 52012800.

The previous prime is 204770393. The next prime is 204770417. The reversal of 204770412 is 214077402.

It is a happy number.

204770412 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (204770417) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1183558 + ... + 1183730.

It is an arithmetic number, because the mean of its divisors is an integer number (3108742).

Almost surely, 2204770412 is an apocalyptic number.

204770412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204770412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335744136).

204770412 is an abundant number, since it is smaller than the sum of its proper divisors (466717860).

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

204770412 is a wasteful number, since it uses less digits than its factorization.

204770412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 204770412 is about 14309.8012564815. The cubic root of 204770412 is about 589.4166521851.

The spelling of 204770412 in words is "two hundred four million, seven hundred seventy thousand, four hundred twelve".