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338612245 = 567722449
BaseRepresentation
bin10100001011101…
…101000000010101
3212121011021200021
4110023231000111
51143141042440
653333345141
711251104466
oct2413550025
9777137607
10338612245
11164157434
12954981b1
13551c9a9a
1432d84d6d
151ead984a
hex142ed015

338612245 has 4 divisors (see below), whose sum is σ = 406334700. Its totient is φ = 270889792.

The previous prime is 338612227. The next prime is 338612257. The reversal of 338612245 is 542216833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542216833 = 3714654509.

It can be written as a sum of positive squares in 2 ways, for example, as 261857124 + 76755121 = 16182^2 + 8761^2 .

It is a cyclic number.

It is not a de Polignac number, because 338612245 - 25 = 338612213 is a prime.

It is a super-2 number, since 2×3386122452 = 229316504927880050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 338612245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33861220 + ... + 33861229.

It is an arithmetic number, because the mean of its divisors is an integer number (101583675).

Almost surely, 2338612245 is an apocalyptic number.

It is an amenable number.

338612245 is a deficient number, since it is larger than the sum of its proper divisors (67722455).

338612245 is an equidigital number, since it uses as much as digits as its factorization.

338612245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67722454.

The product of its digits is 34560, while the sum is 34.

The square root of 338612245 is about 18401.4196463208. The cubic root of 338612245 is about 697.0023136588.

The spelling of 338612245 in words is "three hundred thirty-eight million, six hundred twelve thousand, two hundred forty-five".

Divisors: 1 5 67722449 338612245