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2987261089 = 5153579713
BaseRepresentation
bin1011001000001101…
…1111110010100001
321201012001120211121
42302003133302201
522104214323324
61212231212241
7134012205001
oct26203376241
97635046747
102987261089
1112a325a51a
126b4517081
13387b74117
14204a4c001
151273c95e4
hexb20dfca1

2987261089 has 4 divisors (see below), whose sum is σ = 2987845956. Its totient is φ = 2986676224.

The previous prime is 2987261083. The next prime is 2987261113. The reversal of 2987261089 is 9801627892.

2987261089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1969140625 + 1018120464 = 44375^2 + 31908^2 .

It is a cyclic number.

It is not a de Polignac number, because 2987261089 - 213 = 2987252897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2987261083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284704 + ... + 295009.

It is an arithmetic number, because the mean of its divisors is an integer number (746961489).

Almost surely, 22987261089 is an apocalyptic number.

It is an amenable number.

2987261089 is a deficient number, since it is larger than the sum of its proper divisors (584867).

2987261089 is an equidigital number, since it uses as much as digits as its factorization.

2987261089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584866.

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 2987261089 is about 54655.8422220351. The cubic root of 2987261089 is about 1440.2052641100.

The spelling of 2987261089 in words is "two billion, nine hundred eighty-seven million, two hundred sixty-one thousand, eighty-nine".

Divisors: 1 5153 579713 2987261089