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2081297030812 = 221001895193427
BaseRepresentation
bin11110010010010110111…
…110000101111010011100
321100222012011112220202021
4132102112332011322130
5233044444014441222
64232045030305524
7303240323602426
oct36222676057234
97328164486667
102081297030812
11732744a0735a
122974521b82a4
1312135b30482c
1472a419b5816
15392152a1ac7
hex1e496f85e9c

2081297030812 has 12 divisors (see below), whose sum is σ = 3642306859240. Its totient is φ = 1040637928176.

The previous prime is 2081297030711. The next prime is 2081297030861. The reversal of 2081297030812 is 2180307921802.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2195958 + ... + 2997469.

Almost surely, 22081297030812 is an apocalyptic number.

It is an amenable number.

2081297030812 is a deficient number, since it is larger than the sum of its proper divisors (1561009828428).

2081297030812 is a wasteful number, since it uses less digits than its factorization.

2081297030812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5293620 (or 5293618 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 2081297030812 in words is "two trillion, eighty-one billion, two hundred ninety-seven million, thirty thousand, eight hundred twelve".

Divisors: 1 2 4 100189 200378 400756 5193427 10386854 20773708 520324257703 1040648515406 2081297030812