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4988185920 = 2632510716187
BaseRepresentation
bin1001010010101000…
…11010110101000000
3110212122011002200200
410221110122311000
540203433422140
62142550045200
7234416611044
oct45124326500
913778132620
104988185920
11212a778a03
12b72649800
13616583403
143546a8024
151e2dc1030
hex12951ad40

4988185920 has 168 divisors, whose sum is σ = 17318699424. Its totient is φ = 1317669888.

The previous prime is 4988185897. The next prime is 4988185921. The reversal of 4988185920 is 295818894.

4988185920 is a `hidden beast` number, since 49 + 8 + 8 + 1 + 8 + 592 + 0 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4988185921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 300067 + ... + 316253.

Almost surely, 24988185920 is an apocalyptic number.

4988185920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4988185920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8659349712).

4988185920 is an abundant number, since it is smaller than the sum of its proper divisors (12330513504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4988185920 is a wasteful number, since it uses less digits than its factorization.

4988185920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16317 (or 16304 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 54.

The square root of 4988185920 is about 70627.0905531298. The cubic root of 4988185920 is about 1708.6280983706.

The spelling of 4988185920 in words is "four billion, nine hundred eighty-eight million, one hundred eighty-five thousand, nine hundred twenty".