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12980961446 = 216993820177
BaseRepresentation
bin11000001011011100…
…11100000010100110
31020111122222011110212
430011232130002212
5203041111231241
65544031015422
7636452231435
oct140556340246
936448864425
1012980961446
115561461512
12262336a572
1312bb46709b
148b201111c
1550e940beb
hex305b9c0a6

12980961446 has 8 divisors (see below), whose sum is σ = 19482907800. Its totient is φ = 6486658848.

The previous prime is 12980961437. The next prime is 12980961463. The reversal of 12980961446 is 64416908921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12980961394 and 12980961403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1906691 + ... + 1913486.

It is an arithmetic number, because the mean of its divisors is an integer number (2435363475).

Almost surely, 212980961446 is an apocalyptic number.

12980961446 is a deficient number, since it is larger than the sum of its proper divisors (6501946354).

12980961446 is a wasteful number, since it uses less digits than its factorization.

12980961446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821878.

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 12980961446 in words is "twelve billion, nine hundred eighty million, nine hundred sixty-one thousand, four hundred forty-six".

Divisors: 1 2 1699 3398 3820177 7640354 6490480723 12980961446