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2986441081 = 13217671249
BaseRepresentation
bin1011001000000001…
…0111100101111001
321201010111220222221
42302000113211321
522104012103311
61212201444041
7134002221211
oct26200274571
97633456887
102986441081
1112a284a428
126b41a0621
13387947b00
142048b7241
151272b6671
hexb2017979

2986441081 has 6 divisors (see below), whose sum is σ = 3233838750. Its totient is φ = 2756714688.

The previous prime is 2986441067. The next prime is 2986441097. The reversal of 2986441081 is 1801446892.

It can be written as a sum of positive squares in 3 ways, for example, as 301543225 + 2684897856 = 17365^2 + 51816^2 .

It is a de Polignac number, because none of the positive numbers 2k-2986441081 is a prime.

It is a super-2 number, since 2×29864410812 = 17837660660568897122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2986441021) 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, 8835456 + ... + 8835793.

It is an arithmetic number, because the mean of its divisors is an integer number (538973125).

Almost surely, 22986441081 is an apocalyptic number.

It is an amenable number.

2986441081 is a deficient number, since it is larger than the sum of its proper divisors (247397669).

2986441081 is a wasteful number, since it uses less digits than its factorization.

2986441081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17671275 (or 17671262 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 2986441081 is about 54648.3401486267. The cubic root of 2986441081 is about 1440.0734724922.

The spelling of 2986441081 in words is "two billion, nine hundred eighty-six million, four hundred forty-one thousand, eighty-one".

Divisors: 1 13 169 17671249 229726237 2986441081