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223120133 = 317703849
BaseRepresentation
bin11010100110010…
…00101100000101
3120112211200021122
431103020230011
5424104321013
634050123325
75346330005
oct1523105405
9515750248
10223120133
11104a44505
1262880545
13372c0962
14218c0005
15148c4a08
hexd4c8b05

223120133 has 4 divisors (see below), whose sum is σ = 223824300. Its totient is φ = 222415968.

The previous prime is 223120129. The next prime is 223120147. The reversal of 223120133 is 331021322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331021322 = 2165510661.

It can be written as a sum of positive squares in 2 ways, for example, as 66945124 + 156175009 = 8182^2 + 12497^2 .

It is a cyclic number.

It is not a de Polignac number, because 223120133 - 22 = 223120129 is a prime.

It is a super-3 number, since 3×2231201333 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223120103) 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, 351608 + ... + 352241.

It is an arithmetic number, because the mean of its divisors is an integer number (55956075).

Almost surely, 2223120133 is an apocalyptic number.

It is an amenable number.

223120133 is a deficient number, since it is larger than the sum of its proper divisors (704167).

223120133 is an equidigital number, since it uses as much as digits as its factorization.

223120133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704166.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 223120133 is about 14937.2063318413. The cubic root of 223120133 is about 606.5215740381.

Adding to 223120133 its reverse (331021322), we get a palindrome (554141455).

The spelling of 223120133 in words is "two hundred twenty-three million, one hundred twenty thousand, one hundred thirty-three".

Divisors: 1 317 703849 223120133