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11489801 = 57719913
BaseRepresentation
bin101011110101…
…001000001001
3210121202001012
4223311020021
510420133201
61050133305
7166442651
oct53651011
923552035
1011489801
116538504
123a21235
1324c39cb
141751361
15101e5bb
hexaf5209

11489801 has 4 divisors (see below), whose sum is σ = 11510292. Its totient is φ = 11469312.

The previous prime is 11489789. The next prime is 11489827. The reversal of 11489801 is 10898411.

11489801 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10898411 = 17641083.

It can be written as a sum of positive squares in 2 ways, for example, as 6130576 + 5359225 = 2476^2 + 2315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11489801 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11489701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9380 + ... + 10533.

It is an arithmetic number, because the mean of its divisors is an integer number (2877573).

Almost surely, 211489801 is an apocalyptic number.

It is an amenable number.

11489801 is a deficient number, since it is larger than the sum of its proper divisors (20491).

11489801 is an equidigital number, since it uses as much as digits as its factorization.

11489801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20490.

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 11489801 is about 3389.6608974940. The cubic root of 11489801 is about 225.6511246009.

The spelling of 11489801 in words is "eleven million, four hundred eighty-nine thousand, eight hundred one".

Divisors: 1 577 19913 11489801