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11011122020 = 2251750396427
BaseRepresentation
bin10100100000101000…
…00110001101100100
31001102101100221210002
422100110012031210
5140022321401040
65020342320432
7536602664363
oct122024061544
931371327702
1011011122020
114740544a48
122173729118
13106631cb22
147665677da
15446a39a15
hex290506364

11011122020 has 48 divisors (see below), whose sum is σ = 24492222720. Its totient is φ = 4143896064.

The previous prime is 11011122013. The next prime is 11011122047. The reversal of 11011122020 is 2022111011.

It is a junction number, because it is equal to n+sod(n) for n = 11011121992 and 11011122010.

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, 1710047 + ... + 1716473.

It is an arithmetic number, because the mean of its divisors is an integer number (510254640).

Almost surely, 211011122020 is an apocalyptic number.

11011122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011122020 is an abundant number, since it is smaller than the sum of its proper divisors (13481100700).

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

11011122020 is a wasteful number, since it uses less digits than its factorization.

11011122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11492 (or 11490 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11011122020 its reverse (2022111011), we get a palindrome (13033233031).

The spelling of 11011122020 in words is "eleven billion, eleven million, one hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 5039 6427 10078 12854 20156 25195 25708 32135 50390 64270 85663 100780 109259 128540 171326 218518 342652 428315 437036 546295 856630 1092590 1713260 2185180 32385653 64771306 129542612 161928265 323856530 550556101 647713060 1101112202 2202224404 2752780505 5505561010 11011122020