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2200000 = 265511
BaseRepresentation
bin1000011001000111000000
311010202211111
420121013000
51030400000
6115053104
724461665
oct10310700
94122744
102200000
111272990
128a1194
135c049a
14413a6c
152d6cba
hex2191c0

2200000 has 84 divisors (see below), whose sum is σ = 5952744. Its totient is φ = 800000.

The previous prime is 2199979. The next prime is 2200013. The reversal of 2200000 is 22.

It is a Harshad number since it is a multiple of its sum of digits (4).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

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 11 ways as a sum of consecutive naturals, for example, 199995 + ... + 200005.

It is an arithmetic number, because the mean of its divisors is an integer number (70866).

22200000 is an apocalyptic number.

2200000 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 2200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2976372).

2200000 is an abundant number, since it is smaller than the sum of its proper divisors (3752744).

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

2200000 is an frugal number, since it uses more digits than its factorization.

2200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48 (or 18 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 4.

The square root of 2200000 is about 1483.2396974191. The cubic root of 2200000 is about 130.0591446851.

Adding to 2200000 its reverse (22), we get a palindrome (2200022).

2200000 divided by its reverse (22) gives a 5-th power (100000 = 105).

It can be divided in two parts, 2 and 200000, that added together give a palindrome (200002).

The spelling of 2200000 in words is "two million, two hundred thousand".

Divisors: 1 2 4 5 8 10 11 16 20 22 25 32 40 44 50 55 64 80 88 100 110 125 160 176 200 220 250 275 320 352 400 440 500 550 625 704 800 880 1000 1100 1250 1375 1600 1760 2000 2200 2500 2750 3125 3520 4000 4400 5000 5500 6250 6875 8000 8800 10000 11000 12500 13750 17600 20000 22000 25000 27500 34375 40000 44000 50000 55000 68750 88000 100000 110000 137500 200000 220000 275000 440000 550000 1100000 2200000