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4991802480 = 2432573172941
BaseRepresentation
bin1001010011000100…
…01101110001110000
3110212212221211200100
410221202031301300
540210400134410
62143155352400
7234462423000
oct45142156160
913785854610
104991802480
1121318190a5
12b738b2700
1361724b5a2
14354d6a000
151e33878c0
hex12988dc70

4991802480 has 960 divisors, whose sum is σ = 21936096000. Its totient is φ = 1011548160.

The previous prime is 4991802469. The next prime is 4991802499. The reversal of 4991802480 is 842081994.

4991802480 is a `hidden beast` number, since 4 + 9 + 91 + 80 + 2 + 480 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 121751260 + ... + 121751300.

It is an arithmetic number, because the mean of its divisors is an integer number (22850100).

Almost surely, 24991802480 is an apocalyptic number.

4991802480 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 4991802480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10968048000).

4991802480 is an abundant number, since it is smaller than the sum of its proper divisors (16944293520).

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

4991802480 is a wasteful number, since it uses less digits than its factorization.

4991802480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 4991802480 is about 70652.6891207971. The cubic root of 4991802480 is about 1709.0409313684.

The spelling of 4991802480 in words is "four billion, nine hundred ninety-one million, eight hundred two thousand, four hundred eighty".