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223226087 = 75929161
BaseRepresentation
bin11010100111000…
…10100011100111
3120120001001121212
431103202203213
5424121213322
634052302035
75350250630
oct1523424347
9516031555
10223226087
11105007077
126291191b
1337329c56
142190a887
15148e60e2
hexd4e28e7

223226087 has 12 divisors (see below), whose sum is σ = 259541136. Its totient is φ = 188073120.

The previous prime is 223226083. The next prime is 223226123. The reversal of 223226087 is 780622322.

It is not a de Polignac number, because 223226087 - 22 = 223226083 is a prime.

It is a super-3 number, since 3×2232260873 (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 (223226083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19787 + ... + 28947.

It is an arithmetic number, because the mean of its divisors is an integer number (21628428).

Almost surely, 2223226087 is an apocalyptic number.

223226087 is a deficient number, since it is larger than the sum of its proper divisors (36315049).

223226087 is an frugal number, since it uses more digits than its factorization.

223226087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9286 (or 9227 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 223226087 is about 14940.7525580206. The cubic root of 223226087 is about 606.6175659989.

The spelling of 223226087 in words is "two hundred twenty-three million, two hundred twenty-six thousand, eighty-seven".

Divisors: 1 7 59 413 3481 9161 24367 64127 540499 3783493 31889441 223226087