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12205323352 = 231525665419
BaseRepresentation
bin10110101110111111…
…00111010001011000
31011111121110200001001
423113133213101120
5144444030321402
65335042234344
7611313352045
oct132737472130
934447420031
1012205323352
1151a36500a2
1224476559b4
1311c6863b31
1483adc81cc
154b67cc187
hex2d77e7458

12205323352 has 8 divisors (see below), whose sum is σ = 22884981300. Its totient is φ = 6102661672.

The previous prime is 12205323329. The next prime is 12205323353. The reversal of 12205323352 is 25332350221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 12205323352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12205323353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762832702 + ... + 762832717.

Almost surely, 212205323352 is an apocalyptic number.

It is an amenable number.

12205323352 is a deficient number, since it is larger than the sum of its proper divisors (10679657948).

12205323352 is a wasteful number, since it uses less digits than its factorization.

12205323352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525665425 (or 1525665421 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 12205323352 its reverse (25332350221), we get a palindrome (37537673573).

The spelling of 12205323352 in words is "twelve billion, two hundred five million, three hundred twenty-three thousand, three hundred fifty-two".

Divisors: 1 2 4 8 1525665419 3051330838 6102661676 12205323352