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234870089 = 2310211743
BaseRepresentation
bin11011111111111…
…01010101001001
3121100221122012012
431333331111021
5440111320324
635150025305
75551235306
oct1577752511
9540848165
10234870089
1111063a413
12667a8235
1339875bac
142329c0ad
151594620e
hexdffd549

234870089 has 4 divisors (see below), whose sum is σ = 245081856. Its totient is φ = 224658324.

The previous prime is 234870071. The next prime is 234870121. The reversal of 234870089 is 980078432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 234870089 - 212 = 234865993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234870019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5105849 + ... + 5105894.

It is an arithmetic number, because the mean of its divisors is an integer number (61270464).

Almost surely, 2234870089 is an apocalyptic number.

It is an amenable number.

234870089 is a deficient number, since it is larger than the sum of its proper divisors (10211767).

234870089 is a wasteful number, since it uses less digits than its factorization.

234870089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10211766.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 234870089 is about 15325.4719013804. The cubic root of 234870089 is about 616.9868446244.

The spelling of 234870089 in words is "two hundred thirty-four million, eight hundred seventy thousand, eighty-nine".

Divisors: 1 23 10211743 234870089