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234515238 = 23172299169
BaseRepresentation
bin11011111101001…
…10101100100110
3121100021121102120
431332212230212
5440013441423
635134250410
75545226616
oct1576465446
9540247376
10234515238
11110417851
1266656a06
1339780519
1423208a46
15158c5ee3
hexdfa6b26

234515238 has 16 divisors (see below), whose sum is σ = 496620720. Its totient is φ = 73573376.

The previous prime is 234515207. The next prime is 234515297. The reversal of 234515238 is 832515432.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 234515199 and 234515208.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1149483 + ... + 1149686.

It is an arithmetic number, because the mean of its divisors is an integer number (31038795).

Almost surely, 2234515238 is an apocalyptic number.

234515238 is an abundant number, since it is smaller than the sum of its proper divisors (262105482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

234515238 is a wasteful number, since it uses less digits than its factorization.

234515238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299191.

The product of its digits is 28800, while the sum is 33.

The square root of 234515238 is about 15313.8903613680. The cubic root of 234515238 is about 616.6759653171.

The spelling of 234515238 in words is "two hundred thirty-four million, five hundred fifteen thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 17 34 51 102 2299169 4598338 6897507 13795014 39085873 78171746 117257619 234515238