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223196345 = 5433103093
BaseRepresentation
bin11010100110110…
…11010010111001
3120112222112211022
431103123102321
5424114240340
634051512225
75350065131
oct1523332271
9515875738
10223196345
11104a96799
12628b8675
1337319558
14218ddac1
15148dc3b5
hexd4db4b9

223196345 has 8 divisors (see below), whose sum is σ = 268456776. Its totient is φ = 178142976.

The previous prime is 223196341. The next prime is 223196399. The reversal of 223196345 is 543691322.

It can be written as a sum of positive squares in 4 ways, for example, as 2347024 + 220849321 = 1532^2 + 14861^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 223196345 - 22 = 223196341 is a prime.

It is a super-3 number, since 3×2231963453 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223196341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49382 + ... + 53711.

It is an arithmetic number, because the mean of its divisors is an integer number (33557097).

Almost surely, 2223196345 is an apocalyptic number.

It is an amenable number.

223196345 is a deficient number, since it is larger than the sum of its proper divisors (45260431).

223196345 is a wasteful number, since it uses less digits than its factorization.

223196345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103531.

The product of its digits is 38880, while the sum is 35.

The square root of 223196345 is about 14939.7571934754. The cubic root of 223196345 is about 606.5906234773.

The spelling of 223196345 in words is "two hundred twenty-three million, one hundred ninety-six thousand, three hundred forty-five".

Divisors: 1 5 433 2165 103093 515465 44639269 223196345