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234484431 = 378161477
BaseRepresentation
bin11011111100111…
…11001011001111
3121100020001011120
431332133023033
5440012000211
635133452023
75545041036
oct1576371317
9540201146
10234484431
111103a6695
1266641013
133976c4ac
14231db71d
15158bbd06
hexdf9f2cf

234484431 has 4 divisors (see below), whose sum is σ = 312645912. Its totient is φ = 156322952.

The previous prime is 234484421. The next prime is 234484447. The reversal of 234484431 is 134484432.

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

It is a cyclic number.

It is not a de Polignac number, because 234484431 - 27 = 234484303 is a prime.

It is a super-2 number, since 2×2344844312 = 109965896762787522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 234484392 and 234484401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234484421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39080736 + ... + 39080741.

It is an arithmetic number, because the mean of its divisors is an integer number (78161478).

Almost surely, 2234484431 is an apocalyptic number.

234484431 is a deficient number, since it is larger than the sum of its proper divisors (78161481).

234484431 is an equidigital number, since it uses as much as digits as its factorization.

234484431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78161480.

The product of its digits is 36864, while the sum is 33.

The square root of 234484431 is about 15312.8844768058. The cubic root of 234484431 is about 616.6489610045.

Subtracting from 234484431 its reverse (134484432), we obtain a palindrome (99999999).

The spelling of 234484431 in words is "two hundred thirty-four million, four hundred eighty-four thousand, four hundred thirty-one".

Divisors: 1 3 78161477 234484431