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289298245679 = 1123257611973
BaseRepresentation
bin1000011010110111000…
…01001110100000101111
31000122201200200120122222
410031123201032200233
514214440322330204
6340522441225555
726621036341412
oct4153341164057
91018650616588
10289298245679
11101766354943
12480994922bb
13213859396c1
1410005b09b79
1577d2dd3abe
hex435b84e82f

289298245679 has 4 divisors (see below), whose sum is σ = 289555858776. Its totient is φ = 289040632584.

The previous prime is 289298245673. The next prime is 289298245703. The reversal of 289298245679 is 976542892982.

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

It is a cyclic number.

It is not a de Polignac number, because 289298245679 - 232 = 285003278383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289298245673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128804864 + ... + 128807109.

It is an arithmetic number, because the mean of its divisors is an integer number (72388964694).

Almost surely, 2289298245679 is an apocalyptic number.

289298245679 is a deficient number, since it is larger than the sum of its proper divisors (257613097).

289298245679 is a wasteful number, since it uses less digits than its factorization.

289298245679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257613096.

The product of its digits is 313528320, while the sum is 71.

The spelling of 289298245679 in words is "two hundred eighty-nine billion, two hundred ninety-eight million, two hundred forty-five thousand, six hundred seventy-nine".

Divisors: 1 1123 257611973 289298245679