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11230130220 = 2235187168837
BaseRepresentation
bin10100111010101111…
…00011000000101100
31001222122110201112220
422131113203000230
5140444403131340
65054204355340
7545202350301
oct123527430054
931878421486
1011230130220
114843130061
122214b45b50
13109c800c8a
147876970a8
1545ad9aed0
hex29d5e302c

11230130220 has 24 divisors (see below), whose sum is σ = 31444364784. Its totient is φ = 2994701376.

The previous prime is 11230130099. The next prime is 11230130231. The reversal of 11230130220 is 2203103211.

It is a super-2 number, since 2×112301302202 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11230130220.

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, 93584359 + ... + 93584478.

It is an arithmetic number, because the mean of its divisors is an integer number (1310181866).

Almost surely, 211230130220 is an apocalyptic number.

11230130220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11230130220 is an abundant number, since it is smaller than the sum of its proper divisors (20214234564).

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

11230130220 is a wasteful number, since it uses less digits than its factorization.

11230130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187168849 (or 187168847 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 11230130220 its reverse (2203103211), we get a palindrome (13433233431).

The spelling of 11230130220 in words is "eleven billion, two hundred thirty million, one hundred thirty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 187168837 374337674 561506511 748675348 935844185 1123013022 1871688370 2246026044 2807532555 3743376740 5615065110 11230130220