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1982801082055 = 5478437451413
BaseRepresentation
bin11100110110101000001…
…001110111011011000111
321000112221211001021221011
4130312220021313123013
5224441234034111210
64114515232303051
7263152442054113
oct34665011673307
97015854037834
101982801082055
116a49a0579212
122803440a1a87
13114c922a5351
146bd7a5d0743
153689d111d8a
hex1cda82776c7

1982801082055 has 8 divisors (see below), whose sum is σ = 2429986007232. Its totient is φ = 1552491059808.

The previous prime is 1982801082047. The next prime is 1982801082127. The reversal of 1982801082055 is 5502801082891.

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

It is a cyclic number.

It is not a de Polignac number, because 1982801082055 - 23 = 1982801082047 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 4218725472 + ... + 4218725941.

It is an arithmetic number, because the mean of its divisors is an integer number (303748250904).

Almost surely, 21982801082055 is an apocalyptic number.

1982801082055 is a deficient number, since it is larger than the sum of its proper divisors (447184925177).

1982801082055 is an equidigital number, since it uses as much as digits as its factorization.

1982801082055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8437451465.

The product of its (nonzero) digits is 460800, while the sum is 49.

The spelling of 1982801082055 in words is "one trillion, nine hundred eighty-two billion, eight hundred one million, eighty-two thousand, fifty-five".

Divisors: 1 5 47 235 8437451413 42187257065 396560216411 1982801082055