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18814585124 = 2235334073911
BaseRepresentation
bin10001100001011011…
…111100100100100100
31210120012221221202002
4101201123330210210
5302013013210444
612350541504432
71234146222566
oct214133744444
953505857662
1018814585124
117a85385305
123790b72118
131a0ac1c00a
14ca6ab1336
15751b61d4e
hex4616fc924

18814585124 has 24 divisors (see below), whose sum is σ = 33036933888. Its totient is φ = 9375491840.

The previous prime is 18814585123. The next prime is 18814585133. The reversal of 18814585124 is 42158541881.

It is a super-2 number, since 2×188145851242 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18814585123) 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, 4808729 + ... + 4812639.

It is an arithmetic number, because the mean of its divisors is an integer number (1376538912).

Almost surely, 218814585124 is an apocalyptic number.

It is an amenable number.

18814585124 is a deficient number, since it is larger than the sum of its proper divisors (14222348764).

18814585124 is a wasteful number, since it uses less digits than its factorization.

18814585124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7675 (or 7673 counting only the distinct ones).

The product of its digits is 409600, while the sum is 47.

The spelling of 18814585124 in words is "eighteen billion, eight hundred fourteen million, five hundred eighty-five thousand, one hundred twenty-four".

Divisors: 1 2 4 353 706 1412 3407 3911 6814 7822 13628 15644 1202671 1380583 2405342 2761166 4810684 5522332 13324777 26649554 53299108 4703646281 9407292562 18814585124