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234506161 = 2333100517
BaseRepresentation
bin11011111101001…
…00011110110001
3121100021010222101
431332210132301
5440013144121
635134140401
75545161301
oct1576443661
9540233871
10234506161
11110410a4a
1266651701
1339779356
1423205601
15158c3491
hexdfa47b1

234506161 has 4 divisors (see below), whose sum is σ = 234609012. Its totient is φ = 234403312.

The previous prime is 234506123. The next prime is 234506191. The reversal of 234506161 is 161605432.

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 34000561 + 200505600 = 5831^2 + 14160^2 .

It is a cyclic number.

It is not a de Polignac number, because 234506161 - 219 = 233981873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234506191) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 47926 + ... + 52591.

It is an arithmetic number, because the mean of its divisors is an integer number (58652253).

Almost surely, 2234506161 is an apocalyptic number.

It is an amenable number.

234506161 is a deficient number, since it is larger than the sum of its proper divisors (102851).

234506161 is a wasteful number, since it uses less digits than its factorization.

234506161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102850.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 234506161 is about 15313.5939935732. The cubic root of 234506161 is about 616.6680089899.

The spelling of 234506161 in words is "two hundred thirty-four million, five hundred six thousand, one hundred sixty-one".

Divisors: 1 2333 100517 234506161