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12204030452 = 2220341149993
BaseRepresentation
bin10110101110110101…
…01011100111110100
31011111112000222111212
423113122223213310
5144443212433302
65334554420552
7611266355465
oct132732534764
934445028455
1012204030452
1151a2947789
122447131758
1311c65004c3
1483ab6cd6c
154b6624052
hex2d76ab9f4

12204030452 has 12 divisors (see below), whose sum is σ = 21358245636. Its totient is φ = 6101674560.

The previous prime is 12204030451. The next prime is 12204030469. The reversal of 12204030452 is 25403040221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6063113956 + 6140916496 = 77866^2 + 78364^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12204030451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6368 + ... + 156360.

It is an arithmetic number, because the mean of its divisors is an integer number (1779853803).

Almost surely, 212204030452 is an apocalyptic number.

It is an amenable number.

12204030452 is a deficient number, since it is larger than the sum of its proper divisors (9154215184).

12204030452 is a wasteful number, since it uses less digits than its factorization.

12204030452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170338 (or 170336 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 12204030452 its reverse (25403040221), we get a palindrome (37607070673).

The spelling of 12204030452 in words is "twelve billion, two hundred four million, thirty thousand, four hundred fifty-two".

Divisors: 1 2 4 20341 40682 81364 149993 299986 599972 3051007613 6102015226 12204030452