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11908660 = 2255571069
BaseRepresentation
bin101101011011…
…011000110100
3211102000121111
4231123120310
511022034120
61103124404
7203136061
oct55333064
924360544
1011908660
1167a4175
123ba3704
13260c55a
14181dc68
1510a375a
hexb5b634

11908660 has 24 divisors (see below), whose sum is σ = 25076520. Its totient is φ = 4750464.

The previous prime is 11908643. The next prime is 11908661. The reversal of 11908660 is 6680911.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 47524 + 11861136 = 218^2 + 3444^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11908661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10606 + ... + 11674.

It is an arithmetic number, because the mean of its divisors is an integer number (1044855).

Almost surely, 211908660 is an apocalyptic number.

11908660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11908660 is an abundant number, since it is smaller than the sum of its proper divisors (13167860).

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

11908660 is a wasteful number, since it uses less digits than its factorization.

11908660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635 (or 1633 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 11908660 is about 3450.8926381445. The cubic root of 11908660 is about 228.3604895448.

The spelling of 11908660 in words is "eleven million, nine hundred eight thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 557 1069 1114 2138 2228 2785 4276 5345 5570 10690 11140 21380 595433 1190866 2381732 2977165 5954330 11908660