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230454211 = 13197312781
BaseRepresentation
bin11011011110001…
…11001111000011
3121001122021202011
431233013033003
5432444013321
634511233351
75465554111
oct1557071703
9531567664
10230454211
111090a3729
1265218857
133898ac50
142286cab1
1515372ae1
hexdbc73c3

230454211 has 16 divisors (see below), whose sum is σ = 264843040. Its totient is φ = 198754560.

The previous prime is 230454187. The next prime is 230454253. The reversal of 230454211 is 112454032.

It is a cyclic number.

It is not a de Polignac number, because 230454211 - 25 = 230454179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230454011) 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 15 ways as a sum of consecutive naturals, for example, 11641 + ... + 24421.

It is an arithmetic number, because the mean of its divisors is an integer number (16552690).

Almost surely, 2230454211 is an apocalyptic number.

230454211 is a deficient number, since it is larger than the sum of its proper divisors (34388829).

230454211 is a wasteful number, since it uses less digits than its factorization.

230454211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12886.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 230454211 is about 15180.7183953856. The cubic root of 230454211 is about 613.0956236265.

The spelling of 230454211 in words is "two hundred thirty million, four hundred fifty-four thousand, two hundred eleven".

Divisors: 1 13 19 73 247 949 1387 12781 18031 166153 242839 933013 3156907 12129169 17727247 230454211