Search a number
-
+
4244781 = 31783231
BaseRepresentation
bin10000001100010100101101
321222122202010
4100030110231
52041313111
6230551433
751036312
oct20142455
97878663
104244781
11243a192
121508579
13b58108
147c6d09
1558caa6
hex40c52d

4244781 has 8 divisors (see below), whose sum is σ = 5992704. Its totient is φ = 2663360.

The previous prime is 4244777. The next prime is 4244791. The reversal of 4244781 is 1874424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4244781 - 22 = 4244777 is a prime.

It is a super-2 number, since 2×42447812 = 36036331475922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4244791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41565 + ... + 41666.

It is an arithmetic number, because the mean of its divisors is an integer number (749088).

Almost surely, 24244781 is an apocalyptic number.

It is an amenable number.

4244781 is a deficient number, since it is larger than the sum of its proper divisors (1747923).

4244781 is a wasteful number, since it uses less digits than its factorization.

4244781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83251.

The product of its digits is 7168, while the sum is 30.

The square root of 4244781 is about 2060.2866305444. The cubic root of 4244781 is about 161.9142588500.

The spelling of 4244781 in words is "four million, two hundred forty-four thousand, seven hundred eighty-one".

Divisors: 1 3 17 51 83231 249693 1414927 4244781