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4985000 = 2354997
BaseRepresentation
bin10011000001000010101000
3100101021010122
4103001002220
52234010000
6254502412
760241346
oct23010250
910337118
104985000
1128a5339
121804a08
131057007
1493a996
15687085
hex4c10a8

4985000 has 40 divisors (see below), whose sum is σ = 11691570. Its totient is φ = 1992000.

The previous prime is 4984999. The next prime is 4985003. The reversal of 4985000 is 5894.

It can be written as a sum of positive squares in 5 ways, for example, as 465124 + 4519876 = 682^2 + 2126^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (4985003) 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 9 ways as a sum of consecutive naturals, for example, 4502 + ... + 5498.

Almost surely, 24985000 is an apocalyptic number.

4985000 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 4985000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5845785).

4985000 is an abundant number, since it is smaller than the sum of its proper divisors (6706570).

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

4985000 is an equidigital number, since it uses as much as digits as its factorization.

4985000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 4985000 is about 2232.7113561766. The cubic root of 4985000 is about 170.8264257898.

The spelling of 4985000 in words is "four million, nine hundred eighty-five thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 625 997 1000 1250 1994 2500 3988 4985 5000 7976 9970 19940 24925 39880 49850 99700 124625 199400 249250 498500 623125 997000 1246250 2492500 4985000