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988297792889 = 111759281918119
BaseRepresentation
bin11100110000110110010…
…00111000110101111001
310111110222011122201011212
432120123020320311321
5112143013213333024
62034003455332505
7131254640430101
oct16303310706571
93443864581155
10988297792889
11351153380550
1213b656b21135
1372271a3b334
1435b961c6201
151aa9421aa0e
hexe61b238d79

988297792889 has 16 divisors (see below), whose sum is σ = 1079198208000. Its totient is φ = 897573691920.

The previous prime is 988297792877. The next prime is 988297792907.

988297792889 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 988297792889 - 28 = 988297792633 is a prime.

It is a super-3 number, since 3×9882977928893 (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 988297792889.

It is not an unprimeable number, because it can be changed into a prime (988297792829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54535772 + ... + 54553890.

It is an arithmetic number, because the mean of its divisors is an integer number (67449888000).

Almost surely, 2988297792889 is an apocalyptic number.

It is an amenable number.

988297792889 is a deficient number, since it is larger than the sum of its proper divisors (90900415111).

988297792889 is a wasteful number, since it uses less digits than its factorization.

988297792889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22708.

The product of its digits is 5267275776, while the sum is 86.

The spelling of 988297792889 in words is "nine hundred eighty-eight billion, two hundred ninety-seven million, seven hundred ninety-two thousand, eight hundred eighty-nine".

Divisors: 1 11 1759 2819 18119 19349 31009 199309 4958621 31871321 51077461 54544831 350584531 561852071 89845253899 988297792889