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232068409 = 317732077
BaseRepresentation
bin11011101010100…
…01010100111001
3121011200022000021
431311101110321
5433402142114
635010010441
75515356166
oct1565212471
9534608007
10232068409
11109aa6481
1265876a21
13391048b1
1422b6d06d
1515591024
hexdd51539

232068409 has 4 divisors (see below), whose sum is σ = 232800804. Its totient is φ = 231336016.

The previous prime is 232068401. The next prime is 232068437. The reversal of 232068409 is 904860232.

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 34047225 + 198021184 = 5835^2 + 14072^2 .

It is a cyclic number.

It is not a de Polignac number, because 232068409 - 23 = 232068401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232068401) 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, 365722 + ... + 366355.

It is an arithmetic number, because the mean of its divisors is an integer number (58200201).

Almost surely, 2232068409 is an apocalyptic number.

It is an amenable number.

232068409 is a deficient number, since it is larger than the sum of its proper divisors (732395).

232068409 is an equidigital number, since it uses as much as digits as its factorization.

232068409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732394.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 232068409 is about 15233.7916816530. The cubic root of 232068409 is about 614.5237540646.

The spelling of 232068409 in words is "two hundred thirty-two million, sixty-eight thousand, four hundred nine".

Divisors: 1 317 732077 232068409