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234315405 = 3255207009
BaseRepresentation
bin11011111011101…
…01111010001101
3121022220110022100
431331311322031
5434441043110
635130105313
75543435202
oct1575657215
9538813270
10234315405
111102a06a5
126657b239
133971058c
1423195ca9
1515886bc0
hexdf75e8d

234315405 has 12 divisors (see below), whose sum is σ = 406146780. Its totient is φ = 124968192.

The previous prime is 234315401. The next prime is 234315427. The reversal of 234315405 is 504513432.

It can be written as a sum of positive squares in 2 ways, for example, as 49871844 + 184443561 = 7062^2 + 13581^2 .

It is not a de Polignac number, because 234315405 - 22 = 234315401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234315401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2603460 + ... + 2603549.

It is an arithmetic number, because the mean of its divisors is an integer number (33845565).

Almost surely, 2234315405 is an apocalyptic number.

It is an amenable number.

234315405 is a deficient number, since it is larger than the sum of its proper divisors (171831375).

234315405 is a wasteful number, since it uses less digits than its factorization.

234315405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5207020 (or 5207017 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 234315405 is about 15307.3644041030. The cubic root of 234315405 is about 616.5007567631.

Adding to 234315405 its reverse (504513432), we get a palindrome (738828837).

The spelling of 234315405 in words is "two hundred thirty-four million, three hundred fifteen thousand, four hundred five".

Divisors: 1 3 5 9 15 45 5207009 15621027 26035045 46863081 78105135 234315405