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988886688889 = 115313811228243
BaseRepresentation
bin11100110001111100011…
…11010110010001111001
310111112111012202201121211
432120332033112101321
5112200214443021024
62034142133403121
7131305351111051
oct16307617262171
93445435681554
10988886688889
11351425834860
1213b7a01994a1
1372336a499c8
1435c104bc561
151aacac93594
hexe63e3d6479

988886688889 has 16 divisors (see below), whose sum is σ = 1099936718784. Its totient is φ = 881386459200.

The previous prime is 988886688869. The next prime is 988886689033.

988886688889 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 988886688889 - 25 = 988886688857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 988886688797 and 988886688806.

It is not an unprimeable number, because it can be changed into a prime (988886688869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191002 + ... + 1419244.

It is an arithmetic number, because the mean of its divisors is an integer number (68746044924).

Almost surely, 2988886688889 is an apocalyptic number.

It is an amenable number.

988886688889 is a deficient number, since it is larger than the sum of its proper divisors (111050029895).

988886688889 is a wasteful number, since it uses less digits than its factorization.

988886688889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229688.

The product of its digits is 48922361856, while the sum is 94.

The spelling of 988886688889 in words is "nine hundred eighty-eight billion, eight hundred eighty-six million, six hundred eighty-eight thousand, eight hundred eighty-nine".

Divisors: 1 11 53 583 1381 15191 73193 805123 1228243 13510673 65096879 716065669 1696203583 18658239413 89898789899 988886688889