Search a number
-
+
2885000 = 2354577
BaseRepresentation
bin1011000000010110001000
312102120110212
423000112020
51214310000
6141500252
733344036
oct13002610
95376425
102885000
1116a05a8
12b71688
137a0201
14551556
153bec35
hex2c0588

2885000 has 40 divisors (see below), whose sum is σ = 6771270. Its totient is φ = 1152000.

The previous prime is 2884993. The next prime is 2885021. The reversal of 2885000 is 5882.

It can be written as a sum of positive squares in 5 ways, for example, as 568516 + 2316484 = 754^2 + 1522^2 .

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

It is a congruent number.

It is an unprimeable number.

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, 4712 + ... + 5288.

22885000 is an apocalyptic number.

2885000 is a gapful number since it is divisible by the number (20) 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 2885000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3385635).

2885000 is an abundant number, since it is smaller than the sum of its proper divisors (3886270).

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

2885000 is an equidigital number, since it uses as much as digits as its factorization.

2885000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 2885000 is about 1698.5287751463. The cubic root of 2885000 is about 142.3580200708.

It can be divided in two parts, 288 and 5000, that multiplied together give a square (1440000 = 12002).

The spelling of 2885000 in words is "two million, eight hundred eighty-five thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 577 625 1000 1154 1250 2308 2500 2885 4616 5000 5770 11540 14425 23080 28850 57700 72125 115400 144250 288500 360625 577000 721250 1442500 2885000