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4998205440 = 21234523131
BaseRepresentation
bin1001010011110101…
…01001000000000000
3110220100000010220000
410221322221000000
540214020033230
62143544520000
7234601021344
oct45172510000
913810003800
104998205440
1121353a17a8
12b75a80000
13618680b17
14355b55624
151e3beeb60
hex129ea9000

4998205440 has 520 divisors, whose sum is σ = 18839037888. Its totient is φ = 1265172480.

The previous prime is 4998205403. The next prime is 4998205441. The reversal of 4998205440 is 445028994.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (4998205441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 38154175 + ... + 38154305.

Almost surely, 24998205440 is an apocalyptic number.

4998205440 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 4998205440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9419518944).

4998205440 is an abundant number, since it is smaller than the sum of its proper divisors (13840832448).

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

4998205440 is a wasteful number, since it uses less digits than its factorization.

4998205440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 4998205440 is about 70697.9875243985. The cubic root of 4998205440 is about 1709.7713452344.

The spelling of 4998205440 in words is "four billion, nine hundred ninety-eight million, two hundred five thousand, four hundred forty".