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11680207 = 711178923
BaseRepresentation
bin101100100011…
…100111001111
3210222102020021
4230203213033
510442231312
61054203011
7201165040
oct54434717
923872207
1011680207
116658570
123ab3467
13255c586
1417a08c7
15105ac07
hexb239cf

11680207 has 16 divisors (see below), whose sum is σ = 15420672. Its totient is φ = 8565120.

The previous prime is 11680189. The next prime is 11680213. The reversal of 11680207 is 70208611.

It is a cyclic number.

It is not a de Polignac number, because 11680207 - 211 = 11678159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11680237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3153 + ... + 5770.

It is an arithmetic number, because the mean of its divisors is an integer number (963792).

Almost surely, 211680207 is an apocalyptic number.

11680207 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11680207 is a deficient number, since it is larger than the sum of its proper divisors (3740465).

11680207 is a wasteful number, since it uses less digits than its factorization.

11680207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8958.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 11680207 is about 3417.6317823897. The cubic root of 11680207 is about 226.8907791569.

Adding to 11680207 its reverse (70208611), we get a palindrome (81888818).

The spelling of 11680207 in words is "eleven million, six hundred eighty thousand, two hundred seven".

Divisors: 1 7 11 17 77 119 187 1309 8923 62461 98153 151691 687071 1061837 1668601 11680207