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223211023 = 73650761
BaseRepresentation
bin11010100110111…
…10111000001111
3120120000021221221
431103132320033
5424120223043
634052104211
75350156000
oct1523367017
9516007857
10223211023
11104aa6822
1262905067
1337323139
14219051a7
15148e18ed
hexd4dee0f

223211023 has 8 divisors (see below), whose sum is σ = 260304800. Its totient is φ = 191323440.

The previous prime is 223210957. The next prime is 223211063. The reversal of 223211023 is 320112322.

It is a de Polignac number, because none of the positive numbers 2k-223211023 is a prime.

It is a super-3 number, since 3×2232110233 (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223210988 and 223211006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223211063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325038 + ... + 325723.

It is an arithmetic number, because the mean of its divisors is an integer number (32538100).

Almost surely, 2223211023 is an apocalyptic number.

223211023 is a deficient number, since it is larger than the sum of its proper divisors (37093777).

223211023 is an frugal number, since it uses more digits than its factorization.

223211023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650782 (or 650768 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 223211023 is about 14940.2484249761. The cubic root of 223211023 is about 606.6039202034.

Adding to 223211023 its reverse (320112322), we get a palindrome (543323345).

The spelling of 223211023 in words is "two hundred twenty-three million, two hundred eleven thousand, twenty-three".