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11230332220 = 225561516611
BaseRepresentation
bin10100111010110000…
…10100010100111100
31001222122211222122101
422131120110110330
5140444431112340
65054212554444
7545204151232
oct123530242474
931878758571
1011230332220
1148432588a8
122215022a24
13109c871bc3
1478770a952
1545addac9a
hex29d61453c

11230332220 has 12 divisors (see below), whose sum is σ = 23583697704. Its totient is φ = 4492132880.

The previous prime is 11230332187. The next prime is 11230332221. The reversal of 11230332220 is 2223303211.

It is a super-2 number, since 2×112303322202 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11230332221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280758286 + ... + 280758325.

It is an arithmetic number, because the mean of its divisors is an integer number (1965308142).

Almost surely, 211230332220 is an apocalyptic number.

11230332220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11230332220 is an abundant number, since it is smaller than the sum of its proper divisors (12353365484).

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

11230332220 is a wasteful number, since it uses less digits than its factorization.

11230332220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561516620 (or 561516618 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 11230332220 its reverse (2223303211), we get a palindrome (13453635431).

The spelling of 11230332220 in words is "eleven billion, two hundred thirty million, three hundred thirty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 561516611 1123033222 2246066444 2807583055 5615166110 11230332220