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223040555 = 5397112363
BaseRepresentation
bin11010100101101…
…01010000101011
3120112200122010022
431102311100223
5424044244210
634044311055
75345546003
oct1522652053
9515618108
10223040555
1110499a741
126284248b
133729367a
142189d003
15148ab155
hexd4b542b

223040555 has 8 divisors (see below), whose sum is σ = 268325232. Its totient is φ = 177981408.

The previous prime is 223040509. The next prime is 223040557. The reversal of 223040555 is 555040322.

223040555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 223040555 - 28 = 223040299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223040557) 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, 54197 + ... + 58166.

It is an arithmetic number, because the mean of its divisors is an integer number (33540654).

Almost surely, 2223040555 is an apocalyptic number.

223040555 is a deficient number, since it is larger than the sum of its proper divisors (45284677).

223040555 is a wasteful number, since it uses less digits than its factorization.

223040555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112765.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 223040555 is about 14934.5423431721. The cubic root of 223040555 is about 606.4494581597.

Adding to 223040555 its reverse (555040322), we get a palindrome (778080877).

The spelling of 223040555 in words is "two hundred twenty-three million, forty thousand, five hundred fifty-five".

Divisors: 1 5 397 1985 112363 561815 44608111 223040555