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230421055 = 546084211
BaseRepresentation
bin11011011101111…
…11001000111111
3121001120121021011
431232333020333
5432441433210
634510420051
75465355334
oct1556771077
9531517234
10230421055
11109080827
1265201627
1338978b27
142286098b
1515367d8a
hexdbbf23f

230421055 has 4 divisors (see below), whose sum is σ = 276505272. Its totient is φ = 184336840.

The previous prime is 230421049. The next prime is 230421083. The reversal of 230421055 is 550124032.

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

It is a de Polignac number, because none of the positive numbers 2k-230421055 is a prime.

It is a Duffinian number.

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, 23042101 + ... + 23042110.

It is an arithmetic number, because the mean of its divisors is an integer number (69126318).

Almost surely, 2230421055 is an apocalyptic number.

230421055 is a deficient number, since it is larger than the sum of its proper divisors (46084217).

230421055 is an equidigital number, since it uses as much as digits as its factorization.

230421055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46084216.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 230421055 is about 15179.6263129235. The cubic root of 230421055 is about 613.0662197038.

Adding to 230421055 its reverse (550124032), we get a palindrome (780545087).

The spelling of 230421055 in words is "two hundred thirty million, four hundred twenty-one thousand, fifty-five".

Divisors: 1 5 46084211 230421055