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11689201 = 31377071
BaseRepresentation
bin101100100101…
…110011110001
3210222212120101
4230211303301
510443023301
61054312401
7201233206
oct54456361
923885511
1011689201
1166642a7
123ab8701
1325636b4
1417a3cad
15105d701
hexb25cf1

11689201 has 4 divisors (see below), whose sum is σ = 12066304. Its totient is φ = 11312100.

The previous prime is 11689193. The next prime is 11689211. The reversal of 11689201 is 10298611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10298611 = 87711743.

It is a cyclic number.

It is not a de Polignac number, because 11689201 - 23 = 11689193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11689201.

It is not an unprimeable number, because it can be changed into a prime (11689211) 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 3 ways as a sum of consecutive naturals, for example, 188505 + ... + 188566.

It is an arithmetic number, because the mean of its divisors is an integer number (3016576).

Almost surely, 211689201 is an apocalyptic number.

It is an amenable number.

11689201 is a deficient number, since it is larger than the sum of its proper divisors (377103).

11689201 is an equidigital number, since it uses as much as digits as its factorization.

11689201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377102.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 11689201 is about 3418.9473526219. The cubic root of 11689201 is about 226.9490010734.

The spelling of 11689201 in words is "eleven million, six hundred eighty-nine thousand, two hundred one".

Divisors: 1 31 377071 11689201