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12200015252 = 2217179411989
BaseRepresentation
bin10110101110010110…
…10111010110010100
31011111020110222200202
423113023113112110
5144441200442002
65334332400032
7611220263405
oct132713272624
934436428622
1012200015252
1151a0655037
122445916018
1311c5725a49
1483a4059ac
154b60ce502
hex2d72d7594

12200015252 has 12 divisors (see below), whose sum is σ = 22605910740. Its totient is φ = 5741183616.

The previous prime is 12200015207. The next prime is 12200015257. The reversal of 12200015252 is 25251000221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6863128336 + 5336886916 = 82844^2 + 73054^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200015257) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 89705927 + ... + 89706062.

It is an arithmetic number, because the mean of its divisors is an integer number (1883825895).

Almost surely, 212200015252 is an apocalyptic number.

It is an amenable number.

12200015252 is a deficient number, since it is larger than the sum of its proper divisors (10405895488).

12200015252 is a wasteful number, since it uses less digits than its factorization.

12200015252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179412010 (or 179412008 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 12200015252 its reverse (25251000221), we get a palindrome (37451015473).

The spelling of 12200015252 in words is "twelve billion, two hundred million, fifteen thousand, two hundred fifty-two".

Divisors: 1 2 4 17 34 68 179411989 358823978 717647956 3050003813 6100007626 12200015252