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238799345 = 547759869
BaseRepresentation
bin11100011101111…
…00100111110001
3121122100021010012
432032330213301
5442113034340
635410144305
75626522001
oct1616744761
9548307105
10238799345
11112883534
1267b82095
133a6204b5
1423a02001
1515e70565
hexe3bc9f1

238799345 has 4 divisors (see below), whose sum is σ = 286559220. Its totient is φ = 191039472.

The previous prime is 238799333. The next prime is 238799347. The reversal of 238799345 is 543997832.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73136704 + 165662641 = 8552^2 + 12871^2 .

It is a cyclic number.

It is not a de Polignac number, because 238799345 - 226 = 171690481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 238799293 and 238799302.

It is not an unprimeable number, because it can be changed into a prime (238799347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23879930 + ... + 23879939.

It is an arithmetic number, because the mean of its divisors is an integer number (71639805).

Almost surely, 2238799345 is an apocalyptic number.

It is an amenable number.

238799345 is a deficient number, since it is larger than the sum of its proper divisors (47759875).

238799345 is an equidigital number, since it uses as much as digits as its factorization.

238799345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47759874.

The product of its digits is 1632960, while the sum is 50.

The square root of 238799345 is about 15453.1338245678. The cubic root of 238799345 is about 620.4084587341.

The spelling of 238799345 in words is "two hundred thirty-eight million, seven hundred ninety-nine thousand, three hundred forty-five".

Divisors: 1 5 47759869 238799345