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230231361 = 3151508237
BaseRepresentation
bin11011011100100…
…00110101000001
3121001012222001110
431232100311001
5432414400421
634502353533
75463635313
oct1556206501
9531188043
10230231361
11108a61258
126512b8a9
1338910699
14228117b3
151532ba76
hexdb90d41

230231361 has 8 divisors (see below), whose sum is σ = 309008704. Its totient is φ = 152470800.

The previous prime is 230231347. The next prime is 230231369. The reversal of 230231361 is 163132032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 230231361 - 26 = 230231297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230231369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253666 + ... + 254571.

It is an arithmetic number, because the mean of its divisors is an integer number (38626088).

Almost surely, 2230231361 is an apocalyptic number.

It is an amenable number.

230231361 is a deficient number, since it is larger than the sum of its proper divisors (78777343).

230231361 is a wasteful number, since it uses less digits than its factorization.

230231361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508391.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 230231361 is about 15173.3767171319. The cubic root of 230231361 is about 612.8979380460.

Adding to 230231361 its reverse (163132032), we get a palindrome (393363393).

The spelling of 230231361 in words is "two hundred thirty million, two hundred thirty-one thousand, three hundred sixty-one".

Divisors: 1 3 151 453 508237 1524711 76743787 230231361