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223221333 = 3372011003
BaseRepresentation
bin11010100111000…
…01011001010101
3120120000211002210
431103201121111
5424121040313
634052224033
75350231026
oct1523413125
9516024083
10223221333
11105003545
126290b019
1337327a3a
1421908c4d
15148e49c3
hexd4e1655

223221333 has 8 divisors (see below), whose sum is σ = 305672608. Its totient is φ = 144792144.

The previous prime is 223221307. The next prime is 223221353. The reversal of 223221333 is 333122322.

223221333 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 not a de Polignac number, because 223221333 - 25 = 223221301 is a prime.

It is a super-3 number, since 3×2232213333 (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 (223221353) 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, 1005391 + ... + 1005612.

It is an arithmetic number, because the mean of its divisors is an integer number (38209076).

Almost surely, 2223221333 is an apocalyptic number.

It is an amenable number.

223221333 is a deficient number, since it is larger than the sum of its proper divisors (82451275).

223221333 is a wasteful number, since it uses less digits than its factorization.

223221333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011043.

The product of its digits is 1296, while the sum is 21.

The square root of 223221333 is about 14940.5934621085. The cubic root of 223221333 is about 606.6132596319.

Adding to 223221333 its reverse (333122322), we get a palindrome (556343655).

The spelling of 223221333 in words is "two hundred twenty-three million, two hundred twenty-one thousand, three hundred thirty-three".

Divisors: 1 3 37 111 2011003 6033009 74407111 223221333