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338769385 = 5281241117
BaseRepresentation
bin10100001100010…
…011010111101001
3212121110021020021
4110030103113221
51143211110020
653341000441
711252330563
oct2414232751
9777407207
10338769385
111642544a9
1295553121
1355253476
1432dc6333
151eb1b1aa
hex143135e9

338769385 has 8 divisors (see below), whose sum is σ = 407971656. Its totient is φ = 270049920.

The previous prime is 338769377. The next prime is 338769401. The reversal of 338769385 is 583967833.

It can be written as a sum of positive squares in 4 ways, for example, as 171636201 + 167133184 = 13101^2 + 12928^2 .

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

It is not a de Polignac number, because 338769385 - 23 = 338769377 is a prime.

It is a super-2 number, since 2×3387693852 = 229529392426556450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119154 + ... + 121963.

It is an arithmetic number, because the mean of its divisors is an integer number (50996457).

Almost surely, 2338769385 is an apocalyptic number.

It is an amenable number.

338769385 is a deficient number, since it is larger than the sum of its proper divisors (69202271).

338769385 is a wasteful number, since it uses less digits than its factorization.

338769385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241403.

The product of its digits is 3265920, while the sum is 52.

The square root of 338769385 is about 18405.6889303280. The cubic root of 338769385 is about 697.1101164202.

The spelling of 338769385 in words is "three hundred thirty-eight million, seven hundred sixty-nine thousand, three hundred eighty-five".

Divisors: 1 5 281 1405 241117 1205585 67753877 338769385