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4998784 = 2772797
BaseRepresentation
bin10011000100011010000000
3100101222001011
4103010122000
52234430114
6255050304
760326500
oct23043200
910358034
104998784
11290472a
121810994
13106037b
14941a00
1568b1c4
hex4c4680

4998784 has 48 divisors (see below), whose sum is σ = 11598930. Its totient is φ = 2139648.

The previous prime is 4998769. The next prime is 4998787. The reversal of 4998784 is 4878994.

It can be written as a sum of positive squares in only one way, i.e., 4293184 + 705600 = 2072^2 + 840^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (4998787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5874 + ... + 6670.

Almost surely, 24998784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4998784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5799465).

4998784 is an abundant number, since it is smaller than the sum of its proper divisors (6600146).

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

4998784 is an equidigital number, since it uses as much as digits as its factorization.

4998784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825 (or 806 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 4998784 is about 2235.7960550998. The cubic root of 4998784 is about 170.9837313387.

The spelling of 4998784 in words is "four million, nine hundred ninety-eight thousand, seven hundred eighty-four".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 392 448 784 797 896 1568 1594 3136 3188 5579 6272 6376 11158 12752 22316 25504 39053 44632 51008 78106 89264 102016 156212 178528 312424 357056 624848 714112 1249696 2499392 4998784