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232223165 = 5397116989
BaseRepresentation
bin11011101011101…
…11000110111101
3121011222011021222
431311313012331
5433422120130
635013203125
75516602316
oct1565670675
9534864258
10232223165
1110a0a1779
12659304a5
133915a175
1422bad60d
15155c1ce5
hexdd771bd

232223165 has 8 divisors (see below), whose sum is σ = 279372120. Its totient is φ = 185308992.

The previous prime is 232223153. The next prime is 232223171. The reversal of 232223165 is 561322232.

It can be written as a sum of positive squares in 4 ways, for example, as 116402521 + 115820644 = 10789^2 + 10762^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-232223165 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 56510 + ... + 60479.

It is an arithmetic number, because the mean of its divisors is an integer number (34921515).

Almost surely, 2232223165 is an apocalyptic number.

It is an amenable number.

232223165 is a deficient number, since it is larger than the sum of its proper divisors (47148955).

232223165 is a wasteful number, since it uses less digits than its factorization.

232223165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117391.

The product of its digits is 4320, while the sum is 26.

The square root of 232223165 is about 15238.8702009040. The cubic root of 232223165 is about 614.6603231431.

Adding to 232223165 its reverse (561322232), we get a palindrome (793545397).

The spelling of 232223165 in words is "two hundred thirty-two million, two hundred twenty-three thousand, one hundred sixty-five".

Divisors: 1 5 397 1985 116989 584945 46444633 232223165