Search a number
-
+
286906908089 = 1693214179153
BaseRepresentation
bin1000010110011001111…
…10111111110110111001
31000102120000222001012002
410023030332333312321
514200041132024324
6335445254430345
726504551323614
oct4131476776671
91012500861162
10286906908089
1110074951958a
12477306623b5
1321094394849
14dc5a2a317b
1576e2ebe3ae
hex42ccfbfdb9

286906908089 has 8 divisors (see below), whose sum is σ = 287214088392. Its totient is φ = 286599893760.

The previous prime is 286906908007. The next prime is 286906908103. The reversal of 286906908089 is 980809609682.

It can be written as a sum of positive squares in 4 ways, for example, as 137783500864 + 149123407225 = 371192^2 + 386165^2 .

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 286906908089 - 216 = 286906842553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (286906998089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3585137 + ... + 3664289.

It is an arithmetic number, because the mean of its divisors is an integer number (35901761049).

Almost surely, 2286906908089 is an apocalyptic number.

It is an amenable number.

286906908089 is a deficient number, since it is larger than the sum of its proper divisors (307180303).

286906908089 is a wasteful number, since it uses less digits than its factorization.

286906908089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82987.

The product of its (nonzero) digits is 26873856, while the sum is 65.

The spelling of 286906908089 in words is "two hundred eighty-six billion, nine hundred six million, nine hundred eight thousand, eighty-nine".

Divisors: 1 1693 2141 79153 3624713 134006029 169466573 286906908089