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12400354304425 = 523122371750929
BaseRepresentation
bin1011010001110010111010…
…1101101010000110101001
31121220110111000100000002101
42310130232231222012221
53111131411200220200
642212351044133401
72416616224316023
oct264345655520651
947813430300071
1012400354304425
113a50a6280137a
121483331697261
136bc46b5603c9
1430c274c4d013
151678659a326a
hexb472eb6a1a9

12400354304425 has 24 divisors (see below), whose sum is σ = 15943630653440. Its totient is φ = 9557223609600.

The previous prime is 12400354304413. The next prime is 12400354304461. The reversal of 12400354304425 is 52440345300421.

It is not a de Polignac number, because 12400354304425 - 231 = 12398206820777 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35702640 + ... + 36048289.

Almost surely, 212400354304425 is an apocalyptic number.

It is an amenable number.

12400354304425 is a deficient number, since it is larger than the sum of its proper divisors (3543276349015).

12400354304425 is a wasteful number, since it uses less digits than its factorization.

12400354304425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71751193 (or 71751188 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 12400354304425 its reverse (52440345300421), we get a palindrome (64840699604846).

The spelling of 12400354304425 in words is "twelve trillion, four hundred billion, three hundred fifty-four million, three hundred four thousand, four hundred twenty-five".

Divisors: 1 5 25 31 155 223 775 1115 5575 6913 34565 172825 71750929 358754645 1793773225 2224278799 11121393995 16000457167 55606969975 80002285835 400011429175 496014172177 2480070860885 12400354304425