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230105401 = 297934669
BaseRepresentation
bin11011011011100…
…10000100111001
3121000222120021021
431231302010321
5432401333101
634455542441
75462602141
oct1555620471
9530876237
10230105401
11108985659
126508aa21
1338898256
14227bb921
15153045a1
hexdb72139

230105401 has 4 divisors (see below), whose sum is σ = 238040100. Its totient is φ = 222170704.

The previous prime is 230105389. The next prime is 230105423. The reversal of 230105401 is 104501032.

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 162537001 + 67568400 = 12749^2 + 8220^2 .

It is a cyclic number.

It is not a de Polignac number, because 230105401 - 27 = 230105273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230105461) 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, 3967306 + ... + 3967363.

It is an arithmetic number, because the mean of its divisors is an integer number (59510025).

Almost surely, 2230105401 is an apocalyptic number.

It is an amenable number.

230105401 is a deficient number, since it is larger than the sum of its proper divisors (7934699).

230105401 is an equidigital number, since it uses as much as digits as its factorization.

230105401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7934698.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 230105401 is about 15169.2254581439. The cubic root of 230105401 is about 612.7861451274.

Adding to 230105401 its reverse (104501032), we get a palindrome (334606433).

The spelling of 230105401 in words is "two hundred thirty million, one hundred five thousand, four hundred one".

Divisors: 1 29 7934669 230105401