Search a number
-
+
144697 = 722953
BaseRepresentation
bin100011010100111001
321100111011
4203110321
514112242
63033521
71141600
oct432471
9240434
10144697
1199793
126b8a1
1350b27
143aa37
152cd17
hex23539

144697 has 6 divisors (see below), whose sum is σ = 168378. Its totient is φ = 123984.

The previous prime is 144671. The next prime is 144701. The reversal of 144697 is 796441.

144697 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., 137641 + 7056 = 371^2 + 84^2 .

It is not a de Polignac number, because 144697 - 27 = 144569 is a prime.

It is a d-powerful number, because it can be written as 1 + 46 + 6 + 47 + 94 + 76 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144697.

It is not an unprimeable number, because it can be changed into a prime (144667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1428 + ... + 1525.

It is an arithmetic number, because the mean of its divisors is an integer number (28063).

2144697 is an apocalyptic number.

It is an amenable number.

144697 is a deficient number, since it is larger than the sum of its proper divisors (23681).

144697 is an equidigital number, since it uses as much as digits as its factorization.

144697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967 (or 2960 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 144697 is about 380.3905887374. The cubic root of 144697 is about 52.4992592488.

It can be divided in two parts, 144 and 697, that added together give a square (841 = 292).

The spelling of 144697 in words is "one hundred forty-four thousand, six hundred ninety-seven".

Divisors: 1 7 49 2953 20671 144697