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1084980718081 = 1326420004249
BaseRepresentation
bin11111100100111011110…
…00111110101000000001
310211201112011122012020001
433302131320332220001
5120234020030434311
62150233330120001
7141246555636421
oct17623570765001
93751464565201
101084980718081
1138915736a207
12156339a20001
137b40c26a900
143a7288a4481
151d35212d4c1
hexfc9de3ea01

1084980718081 has 6 divisors (see below), whose sum is σ = 1174860777750. Its totient is φ = 1001520662688.

The previous prime is 1084980718057. The next prime is 1084980718097. The reversal of 1084980718081 is 1808170894801.

It can be written as a sum of positive squares in 3 ways, for example, as 40578476481 + 1044402241600 = 201441^2 + 1021960^2 .

It is not a de Polignac number, because 1084980718081 - 219 = 1084980193793 is a prime.

It is a super-2 number, since 2×10849807180812 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1084980718781) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3210001956 + ... + 3210002293.

It is an arithmetic number, because the mean of its divisors is an integer number (195810129625).

Almost surely, 21084980718081 is an apocalyptic number.

It is an amenable number.

1084980718081 is a deficient number, since it is larger than the sum of its proper divisors (89880059669).

1084980718081 is an equidigital number, since it uses as much as digits as its factorization.

1084980718081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6420004275 (or 6420004262 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 55.

The spelling of 1084980718081 in words is "one trillion, eighty-four billion, nine hundred eighty million, seven hundred eighteen thousand, eighty-one".

Divisors: 1 13 169 6420004249 83460055237 1084980718081