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223102123 = 1911742217
BaseRepresentation
bin11010100110001…
…00010010101011
3120112210202120121
431103010102223
5424103231443
634045504111
75346223336
oct1523042253
9515722517
10223102123
11104a31a22
1262872037
13372b56ba
14218b761d
15148be4ed
hexd4c44ab

223102123 has 4 divisors (see below), whose sum is σ = 234844360. Its totient is φ = 211359888.

The previous prime is 223102109. The next prime is 223102127. The reversal of 223102123 is 321201322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 223102123 - 213 = 223093931 is a prime.

It is a super-3 number, since 3×2231021233 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223102097 and 223102106.

It is not an unprimeable number, because it can be changed into a prime (223102127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5871090 + ... + 5871127.

It is an arithmetic number, because the mean of its divisors is an integer number (58711090).

Almost surely, 2223102123 is an apocalyptic number.

223102123 is a deficient number, since it is larger than the sum of its proper divisors (11742237).

223102123 is a wasteful number, since it uses less digits than its factorization.

223102123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11742236.

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

The square root of 223102123 is about 14936.6034626350. The cubic root of 223102123 is about 606.5052543581.

Adding to 223102123 its reverse (321201322), we get a palindrome (544303445).

The spelling of 223102123 in words is "two hundred twenty-three million, one hundred two thousand, one hundred twenty-three".

Divisors: 1 19 11742217 223102123