Search a number
-
+
6415145 = 511116639
BaseRepresentation
bin11000011110001100101001
3110001220220222
4120132030221
53120241040
6345255425
7105346022
oct30361451
913056828
106415145
113691880
122194575
131437c59
14bcdc49
1586abb5
hex61e329

6415145 has 8 divisors (see below), whose sum is σ = 8398080. Its totient is φ = 4665520.

The previous prime is 6415139. The next prime is 6415159. The reversal of 6415145 is 5415146.

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

It is not a de Polignac number, because 6415145 - 26 = 6415081 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 58265 + ... + 58374.

It is an arithmetic number, because the mean of its divisors is an integer number (1049760).

Almost surely, 26415145 is an apocalyptic number.

It is an amenable number.

6415145 is a deficient number, since it is larger than the sum of its proper divisors (1982935).

6415145 is a wasteful number, since it uses less digits than its factorization.

6415145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116655.

The product of its digits is 2400, while the sum is 26.

The square root of 6415145 is about 2532.8136528375. The cubic root of 6415145 is about 185.8098897723.

Subtracting from 6415145 its reverse (5415146), we obtain a palindrome (999999).

The spelling of 6415145 in words is "six million, four hundred fifteen thousand, one hundred forty-five".

Divisors: 1 5 11 55 116639 583195 1283029 6415145