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223305039 = 338270557
BaseRepresentation
bin11010100111101…
…01110101001111
3120120012001221000
431103311311033
5424131230124
634054111343
75351030046
oct1523656517
9516161830
10223305039
11105060421
126294b553
1337356b79
142192b55d
151490e6c9
hexd4f5d4f

223305039 has 8 divisors (see below), whose sum is σ = 330822320. Its totient is φ = 148870008.

The previous prime is 223305031. The next prime is 223305067. The reversal of 223305039 is 930503322.

It is not a de Polignac number, because 223305039 - 23 = 223305031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 8270557 = 223305039 / (2 + 2 + 3 + 3 + 0 + 5 + 0 + 3 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223305031) 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, 4135252 + ... + 4135305.

It is an arithmetic number, because the mean of its divisors is an integer number (41352790).

Almost surely, 2223305039 is an apocalyptic number.

223305039 is a deficient number, since it is larger than the sum of its proper divisors (107517281).

223305039 is an equidigital number, since it uses as much as digits as its factorization.

223305039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8270566 (or 8270560 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 27.

The square root of 223305039 is about 14943.3944938893. The cubic root of 223305039 is about 606.6890750018.

The spelling of 223305039 in words is "two hundred twenty-three million, three hundred five thousand, thirty-nine".

Divisors: 1 3 9 27 8270557 24811671 74435013 223305039