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223215052 = 2255803763
BaseRepresentation
bin11010100110111…
…11110111001100
3120120000111111011
431103133313030
5424120340202
634052135004
75350203514
oct1523376714
9516014434
10223215052
11104aa9855
1262907464
1337324c18
1421906844
15148e2bd7
hexd4dfdcc

223215052 has 6 divisors (see below), whose sum is σ = 390626348. Its totient is φ = 111607524.

The previous prime is 223215019. The next prime is 223215067. The reversal of 223215052 is 250512322.

It is a super-3 number, since 3×2232150523 (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27901878 + ... + 27901885.

Almost surely, 2223215052 is an apocalyptic number.

It is an amenable number.

223215052 is a deficient number, since it is larger than the sum of its proper divisors (167411296).

223215052 is a wasteful number, since it uses less digits than its factorization.

223215052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55803767 (or 55803765 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 223215052 is about 14940.3832614830. The cubic root of 223215052 is about 606.6075699522.

Adding to 223215052 its reverse (250512322), we get a palindrome (473727374).

The spelling of 223215052 in words is "two hundred twenty-three million, two hundred fifteen thousand, fifty-two".

Divisors: 1 2 4 55803763 111607526 223215052