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11208280 = 235280207
BaseRepresentation
bin101010110000…
…011001011000
3210002102212111
4222300121120
510332131110
61040122104
7164161126
oct52603130
923072774
1011208280
116365a46
123906334
132425825
1416ba916
15eb5e8a
hexab0658

11208280 has 16 divisors (see below), whose sum is σ = 25218720. Its totient is φ = 4483296.

The previous prime is 11208269. The next prime is 11208311. The reversal of 11208280 is 8280211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140064 + ... + 140143.

It is an arithmetic number, because the mean of its divisors is an integer number (1576170).

Almost surely, 211208280 is an apocalyptic number.

11208280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11208280 is an abundant number, since it is smaller than the sum of its proper divisors (14010440).

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

11208280 is a wasteful number, since it uses less digits than its factorization.

11208280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280218 (or 280214 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 11208280 is about 3347.8769391959. The cubic root of 11208280 is about 223.7929102185.

Adding to 11208280 its reverse (8280211), we get a palindrome (19488491).

The spelling of 11208280 in words is "eleven million, two hundred eight thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 280207 560414 1120828 1401035 2241656 2802070 5604140 11208280