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223111201 = 239700487
BaseRepresentation
bin11010100110001…
…10100000100001
3120112211020000211
431103012200201
5424104024301
634050014121
75346261655
oct1523064041
9515736024
10223111201
11104a38825
1262877341
13372b9881
14218baa65
15148c2051
hexd4c6821

223111201 has 4 divisors (see below), whose sum is σ = 232811712. Its totient is φ = 213410692.

The previous prime is 223111177. The next prime is 223111241. The reversal of 223111201 is 102111322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 223111201 - 213 = 223103009 is a prime.

It is a super-3 number, since 3×2231112013 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223111241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4850221 + ... + 4850266.

It is an arithmetic number, because the mean of its divisors is an integer number (58202928).

Almost surely, 2223111201 is an apocalyptic number.

It is an amenable number.

223111201 is a deficient number, since it is larger than the sum of its proper divisors (9700511).

223111201 is an equidigital number, since it uses as much as digits as its factorization.

223111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9700510.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 223111201 is about 14936.9073438915. The cubic root of 223111201 is about 606.5134804565.

Adding to 223111201 its reverse (102111322), we get a palindrome (325222523).

The spelling of 223111201 in words is "two hundred twenty-three million, one hundred eleven thousand, two hundred one".

Divisors: 1 23 9700487 223111201