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11545216 = 2790197
BaseRepresentation
bin101100000010…
…101010000000
3210201120001121
4230002222000
510423421331
61051242024
7200063344
oct54025200
923646047
1011545216
116576101
123a49314
132512cb7
141767624
151030c11
hexb02a80

11545216 has 16 divisors (see below), whose sum is σ = 23000490. Its totient is φ = 5772544.

The previous prime is 11545187. The next prime is 11545223. The reversal of 11545216 is 61254511.

Adding to 11545216 its reverse (61254511), we get a palindrome (72799727).

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9585216 + 1960000 = 3096^2 + 1400^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44971 + ... + 45226.

Almost surely, 211545216 is an apocalyptic number.

11545216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11545216 is a deficient number, since it is larger than the sum of its proper divisors (11455274).

11545216 is an frugal number, since it uses more digits than its factorization.

11545216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90211 (or 90199 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 11545216 is about 3397.8251867923. The cubic root of 11545216 is about 226.0133127094.

The spelling of 11545216 in words is "eleven million, five hundred forty-five thousand, two hundred sixteen".

Divisors: 1 2 4 8 16 32 64 128 90197 180394 360788 721576 1443152 2886304 5772608 11545216