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223030705 = 5277161033
BaseRepresentation
bin11010100101100…
…10110110110001
3120112200010121111
431102302312301
5424043440310
634044153321
75345505202
oct1522626661
9515603544
10223030705
111049932a7
1262838841
133728c041
14218995a9
15148a828a
hexd4b2db1

223030705 has 8 divisors (see below), whose sum is σ = 268604712. Its totient is φ = 177779328.

The previous prime is 223030697. The next prime is 223030727. The reversal of 223030705 is 507030322.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5527201 + 217503504 = 2351^2 + 14748^2 .

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 223030705 - 23 = 223030697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79132 + ... + 81901.

It is an arithmetic number, because the mean of its divisors is an integer number (33575589).

Almost surely, 2223030705 is an apocalyptic number.

It is an amenable number.

223030705 is a deficient number, since it is larger than the sum of its proper divisors (45574007).

223030705 is a wasteful number, since it uses less digits than its factorization.

223030705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161315.

The product of its (nonzero) digits is 1260, while the sum is 22.

The square root of 223030705 is about 14934.2125671225. The cubic root of 223030705 is about 606.4405306127.

The spelling of 223030705 in words is "two hundred twenty-three million, thirty thousand, seven hundred five".

Divisors: 1 5 277 1385 161033 805165 44606141 223030705