Search a number
-
+
5781055 = 57165173
BaseRepresentation
bin10110000011011000111111
3101212201010011
4112003120333
52434443210
6323524051
7100065250
oct26033077
911781104
105781055
113299435
121b29627
131275457
14aa6b27
15792d8a
hex58363f

5781055 has 8 divisors (see below), whose sum is σ = 7928352. Its totient is φ = 3964128.

The previous prime is 5781053. The next prime is 5781059. The reversal of 5781055 is 5501875.

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

It is not a de Polignac number, because 5781055 - 21 = 5781053 is a prime.

It is a Duffinian number.

5781055 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5781053) 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 7 ways as a sum of consecutive naturals, for example, 82552 + ... + 82621.

It is an arithmetic number, because the mean of its divisors is an integer number (991044).

Almost surely, 25781055 is an apocalyptic number.

5781055 is a deficient number, since it is larger than the sum of its proper divisors (2147297).

5781055 is a wasteful number, since it uses less digits than its factorization.

5781055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165185.

The product of its (nonzero) digits is 7000, while the sum is 31.

The square root of 5781055 is about 2404.3824570979. The cubic root of 5781055 is about 179.4743408827.

The spelling of 5781055 in words is "five million, seven hundred eighty-one thousand, fifty-five".

Divisors: 1 5 7 35 165173 825865 1156211 5781055