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223198741 = 537357689
BaseRepresentation
bin11010100110110…
…11111000010101
3120112222200010001
431103123320111
5424114324431
634051531301
75350105123
oct1523337025
9515880101
10223198741
11104a98577
12628b9b31
133731a67c
1421900913
15148dce61
hexd4dbe15

223198741 has 8 divisors (see below), whose sum is σ = 230529240. Its totient is φ = 215983872.

The previous prime is 223198733. The next prime is 223198751. The reversal of 223198741 is 147891322.

It can be written as a sum of positive squares in 4 ways, for example, as 25796241 + 197402500 = 5079^2 + 14050^2 .

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 223198741 - 23 = 223198733 is a prime.

It is a super-3 number, since 3×2231987413 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223198741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223198721) 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, 24976 + ... + 32713.

It is an arithmetic number, because the mean of its divisors is an integer number (28816155).

Almost surely, 2223198741 is an apocalyptic number.

It is an amenable number.

223198741 is a deficient number, since it is larger than the sum of its proper divisors (7330499).

223198741 is an equidigital number, since it uses as much as digits as its factorization.

223198741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57815.

The product of its digits is 24192, while the sum is 37.

The square root of 223198741 is about 14939.8373819798. The cubic root of 223198741 is about 606.5927940414.

The spelling of 223198741 in words is "two hundred twenty-three million, one hundred ninety-eight thousand, seven hundred forty-one".

Divisors: 1 53 73 3869 57689 3057517 4211297 223198741