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2200220 = 2251173137
BaseRepresentation
bin1000011001001010011100
311010210010122
420121022130
51030401340
6115054112
724462431
oct10311234
94123118
102200220
111273070
128a1338
135c0609
14413b88
152d6db5
hex21929c

2200220 has 48 divisors (see below), whose sum is σ = 5146848. Its totient is φ = 783360.

The previous prime is 2200217. The next prime is 2200277. The reversal of 2200220 is 220022.

It is a junction number, because it is equal to n+sod(n) for n = 2200198 and 2200207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15992 + ... + 16128.

It is an arithmetic number, because the mean of its divisors is an integer number (107226).

22200220 is an apocalyptic number.

2200220 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 2200220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2573424).

2200220 is an abundant number, since it is smaller than the sum of its proper divisors (2946628).

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

2200220 is a wasteful number, since it uses less digits than its factorization.

2200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 228 counting only the distinct ones).

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

The square root of 2200220 is about 1483.3138575500. The cubic root of 2200220 is about 130.0634798455.

Adding to 2200220 its reverse (220022), we get a palindrome (2420242).

It can be divided in two parts, 22002 and 20, that added together give a palindrome (22022).

The spelling of 2200220 in words is "two million, two hundred thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 73 110 137 146 220 274 292 365 548 685 730 803 1370 1460 1507 1606 2740 3014 3212 4015 6028 7535 8030 10001 15070 16060 20002 30140 40004 50005 100010 110011 200020 220022 440044 550055 1100110 2200220