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2220020 = 2251110091
BaseRepresentation
bin1000011101111111110100
311011210021222
420131333310
51032020040
6115325512
724604235
oct10357764
94153258
102220020
111286a30
128b0898
135c962a
1441b08c
152dcbb5
hex21dff4

2220020 has 24 divisors (see below), whose sum is σ = 5086368. Its totient is φ = 807200.

The previous prime is 2220007. The next prime is 2220041. The reversal of 2220020 is 200222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4826 + ... + 5265.

It is an arithmetic number, because the mean of its divisors is an integer number (211932).

22220020 is an apocalyptic number.

2220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220020 is an abundant number, since it is smaller than the sum of its proper divisors (2866348).

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

2220020 is a wasteful number, since it uses less digits than its factorization.

2220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10111 (or 10109 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 2220020 is about 1489.9731541206. The cubic root of 2220020 is about 130.4524667488.

Adding to 2220020 its reverse (200222), we get a palindrome (2420242).

It can be divided in two parts, 2 and 220020, that added together give a palindrome (220022).

The spelling of 2220020 in words is "two million, two hundred twenty thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 10091 20182 40364 50455 100910 111001 201820 222002 444004 555005 1110010 2220020