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230888545 = 546177709
BaseRepresentation
bin11011100001100…
…01010001100001
3121002110100112121
431300301101201
5433101413140
634524424241
75502343306
oct1560612141
9532410477
10230888545
1110936aa88
12653a8081
1338ab0854
14229430ad
151540b64a
hexdc31461

230888545 has 4 divisors (see below), whose sum is σ = 277066260. Its totient is φ = 184710832.

The previous prime is 230888533. The next prime is 230888549. The reversal of 230888545 is 545888032.

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 30835809 + 200052736 = 5553^2 + 14144^2 .

It is a cyclic number.

It is not a de Polignac number, because 230888545 - 221 = 228791393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230888549) 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, 23088850 + ... + 23088859.

It is an arithmetic number, because the mean of its divisors is an integer number (69266565).

Almost surely, 2230888545 is an apocalyptic number.

It is an amenable number.

230888545 is a deficient number, since it is larger than the sum of its proper divisors (46177715).

230888545 is an equidigital number, since it uses as much as digits as its factorization.

230888545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46177714.

The product of its (nonzero) digits is 307200, while the sum is 43.

The square root of 230888545 is about 15195.0171108821. The cubic root of 230888545 is about 613.4805463094.

The spelling of 230888545 in words is "two hundred thirty million, eight hundred eighty-eight thousand, five hundred forty-five".

Divisors: 1 5 46177709 230888545