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1213425253886 = 22920921125067
BaseRepresentation
bin10001101010000101110…
…001111111110111111110
311022000001200200200002212
4101222011301333313332
5124340043331111021
62325235002220422
7153444544322636
oct21520561776776
94260050620085
101213425253886
11428679a1603a
121772057b4712
138a56bb00911
1442a3154d6c6
152186d63d85b
hex11a85c7fdfe

1213425253886 has 8 divisors (see below), whose sum is σ = 1882901256120. Its totient is φ = 585791501848.

The previous prime is 1213425253849. The next prime is 1213425253891. The reversal of 1213425253886 is 6883525243121.

It is a happy number.

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

It is a Curzon number.

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, 10460562476 + ... + 10460562591.

It is an arithmetic number, because the mean of its divisors is an integer number (235362657015).

Almost surely, 21213425253886 is an apocalyptic number.

1213425253886 is a deficient number, since it is larger than the sum of its proper divisors (669476002234).

1213425253886 is a wasteful number, since it uses less digits than its factorization.

1213425253886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20921125098.

The product of its digits is 2764800, while the sum is 50.

The spelling of 1213425253886 in words is "one trillion, two hundred thirteen billion, four hundred twenty-five million, two hundred fifty-three thousand, eight hundred eighty-six".

Divisors: 1 2 29 58 20921125067 41842250134 606712626943 1213425253886