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11444689 = 1721992
BaseRepresentation
bin101011101010…
…000111010001
3210112110011101
4223222013101
510412212224
61045144401
7166164304
oct53520721
923473141
1011444689
116507623
1239bb101
1324a9309
14173cb3b
151011044
hexaea1d1

11444689 has 9 divisors (see below), whose sum is σ = 12218907. Its totient is φ = 10717344.

The previous prime is 11444687. The next prime is 11444717. The reversal of 11444689 is 98644411.

The square root of 11444689 is 3383.

It is a perfect power (a square), and thus also a powerful number.

11444689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8910225 + 2534464 = 2985^2 + 1592^2 .

It is not a de Polignac number, because 11444689 - 21 = 11444687 is a prime.

It is a Duffinian number.

Its product of digits (27648) is a multiple of the sum of its prime divisors (216).

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11444681) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 57412 + ... + 57610.

Almost surely, 211444689 is an apocalyptic number.

11444689 is the 3383-rd square number.

11444689 is the 1692-nd centered octagonal number.

It is an amenable number.

11444689 is a deficient number, since it is larger than the sum of its proper divisors (774218).

11444689 is an frugal number, since it uses more digits than its factorization.

11444689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 216 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The cubic root of 11444689 is about 225.3554152369.

The spelling of 11444689 in words is "eleven million, four hundred forty-four thousand, six hundred eighty-nine".

Divisors: 1 17 199 289 3383 39601 57511 673217 11444689