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11201030220 = 2235186683837
BaseRepresentation
bin10100110111010001…
…00010100001001100
31001220121201021212010
422123220202201030
5140414430431340
65051244541220
7544400120532
oct123350424114
931817637763
1011201030220
114828764876
122207251810
131096782843
14783880152
1545854db80
hex29ba2284c

11201030220 has 24 divisors (see below), whose sum is σ = 31362884784. Its totient is φ = 2986941376.

The previous prime is 11201030213. The next prime is 11201030263. The reversal of 11201030220 is 2203010211.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11201030196 and 11201030205.

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, 93341859 + ... + 93341978.

It is an arithmetic number, because the mean of its divisors is an integer number (1306786866).

Almost surely, 211201030220 is an apocalyptic number.

11201030220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11201030220 is an abundant number, since it is smaller than the sum of its proper divisors (20161854564).

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

11201030220 is a wasteful number, since it uses less digits than its factorization.

11201030220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186683849 (or 186683847 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 11201030220 its reverse (2203010211), we get a palindrome (13404040431).

The spelling of 11201030220 in words is "eleven billion, two hundred one million, thirty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 186683837 373367674 560051511 746735348 933419185 1120103022 1866838370 2240206044 2800257555 3733676740 5600515110 11201030220