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1223030122 = 2611515061
BaseRepresentation
bin100100011100101…
…1111010101101010
310011020100100220221
41020321133111222
510001043430442
6321205440254
742210404326
oct11071372552
93136310827
101223030122
115784066a6
122a171008a
131664c8b82
14b8606986
1572589467
hex48e5f56a

1223030122 has 4 divisors (see below), whose sum is σ = 1834545186. Its totient is φ = 611515060.

The previous prime is 1223030117. The next prime is 1223030131. The reversal of 1223030122 is 2210303221.

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

It can be written as a sum of positive squares in only one way, i.e., 1211666481 + 11363641 = 34809^2 + 3371^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1223030096 and 1223030105.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 305757529 + ... + 305757532.

Almost surely, 21223030122 is an apocalyptic number.

1223030122 is a deficient number, since it is larger than the sum of its proper divisors (611515064).

1223030122 is an equidigital number, since it uses as much as digits as its factorization.

1223030122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611515063.

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

The square root of 1223030122 is about 34971.8475634331. The cubic root of 1223030122 is about 1069.4136368631.

Adding to 1223030122 its reverse (2210303221), we get a palindrome (3433333343).

The spelling of 1223030122 in words is "one billion, two hundred twenty-three million, thirty thousand, one hundred twenty-two".

Divisors: 1 2 611515061 1223030122