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1223212030 = 25160176403
BaseRepresentation
bin100100011101000…
…1011101111111110
310011020200121110021
41020322023233332
510001120241110
6321213402354
742212062555
oct11072135776
93136617407
101223212030
11578520337
122a17993ba
13166560901
14b8652d9c
15725c32da
hex48e8bbfe

1223212030 has 16 divisors (see below), whose sum is σ = 2203185744. Its totient is φ = 488972800.

The previous prime is 1223212027. The next prime is 1223212051. The reversal of 1223212030 is 302123221.

It is a junction number, because it is equal to n+sod(n) for n = 1223211995 and 1223212013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22192 + ... + 54211.

It is an arithmetic number, because the mean of its divisors is an integer number (137699109).

Almost surely, 21223212030 is an apocalyptic number.

1223212030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223212030 is a deficient number, since it is larger than the sum of its proper divisors (979973714).

1223212030 is a wasteful number, since it uses less digits than its factorization.

1223212030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78011.

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

The square root of 1223212030 is about 34974.4482443969. The cubic root of 1223212030 is about 1069.4666541597.

Adding to 1223212030 its reverse (302123221), we get a palindrome (1525335251).

The spelling of 1223212030 in words is "one billion, two hundred twenty-three million, two hundred twelve thousand, thirty".

Divisors: 1 2 5 10 1601 3202 8005 16010 76403 152806 382015 764030 122321203 244642406 611606015 1223212030