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985918837868 = 22509948338833
BaseRepresentation
bin11100101100011010101…
…01111001010001101100
310111020211101020021101122
432112031111321101230
5112123130210302433
62032531434200112
7131141662564136
oct16261525712154
93436741207348
10985918837868
11350142532418
1213b0b2283038
1371c82c10643
1435a0c284056
151a9a5450198
hexe58d57946c

985918837868 has 12 divisors (see below), whose sum is σ = 1725696373800. Its totient is φ = 492862731072.

The previous prime is 985918837853. The next prime is 985918837879. The reversal of 985918837868 is 868738819589.

It is a junction number, because it is equal to n+sod(n) for n = 985918837792 and 985918837801.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24149021 + ... + 24189812.

It is an arithmetic number, because the mean of its divisors is an integer number (143808031150).

Almost surely, 2985918837868 is an apocalyptic number.

It is an amenable number.

985918837868 is a deficient number, since it is larger than the sum of its proper divisors (739777535932).

985918837868 is a wasteful number, since it uses less digits than its factorization.

985918837868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48343936 (or 48343934 counting only the distinct ones).

The product of its digits is 1672151040, while the sum is 80.

The spelling of 985918837868 in words is "nine hundred eighty-five billion, nine hundred eighteen million, eight hundred thirty-seven thousand, eight hundred sixty-eight".

Divisors: 1 2 4 5099 10198 20396 48338833 96677666 193355332 246479709467 492959418934 985918837868