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2128081410372 = 223418494237619
BaseRepresentation
bin11110111101111011100…
…010010101100101000100
321112102221122121122101210
4132331323202111211010
5234331302320112442
64305343242051420
7306514561346451
oct36757342254504
97472848548353
102128081410372
11750572528155
122a452a1a9b70
131258a5ac6b68
1474ddd212828
153a5526b019c
hex1ef7b895944

2128081410372 has 24 divisors (see below), whose sum is σ = 4965643116000. Its totient is φ = 709343352256.

The previous prime is 2128081410359. The next prime is 2128081410419. The reversal of 2128081410372 is 2730141808212.

It is a self number, because there is not a number n which added to its sum of digits gives 2128081410372.

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 7 ways as a sum of consecutive naturals, for example, 1616622 + ... + 2620997.

It is an arithmetic number, because the mean of its divisors is an integer number (206901796500).

Almost surely, 22128081410372 is an apocalyptic number.

It is an amenable number.

2128081410372 is an abundant number, since it is smaller than the sum of its proper divisors (2837561705628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2128081410372 is a wasteful number, since it uses less digits than its factorization.

2128081410372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4279475 (or 4279473 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The spelling of 2128081410372 in words is "two trillion, one hundred twenty-eight billion, eighty-one million, four hundred ten thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 41849 83698 125547 167396 251094 502188 4237619 8475238 12712857 16950476 25425714 50851428 177340117531 354680235062 532020352593 709360470124 1064040705186 2128081410372