Search a number
-
+
494318481 = 3164772827
BaseRepresentation
bin11101011101101…
…011001110010001
31021110010222110220
4131131223032101
52003021142411
6121014543253
715151431516
oct3535531621
91243128426
10494318481
11234036878
12119667b29
137b546057
144991730d
152d5e4b06
hex1d76b391

494318481 has 4 divisors (see below), whose sum is σ = 659091312. Its totient is φ = 329545652.

The previous prime is 494318479. The next prime is 494318491. The reversal of 494318481 is 184813494.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 494318481 - 21 = 494318479 is a prime.

It is a super-2 number, since 2×4943184812 = 488701521316294722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (494318431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82386411 + ... + 82386416.

It is an arithmetic number, because the mean of its divisors is an integer number (164772828).

Almost surely, 2494318481 is an apocalyptic number.

It is an amenable number.

494318481 is a deficient number, since it is larger than the sum of its proper divisors (164772831).

494318481 is a wasteful number, since it uses less digits than its factorization.

494318481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164772830.

The product of its digits is 110592, while the sum is 42.

The square root of 494318481 is about 22233.2741853286. The cubic root of 494318481 is about 790.6827836368.

The spelling of 494318481 in words is "four hundred ninety-four million, three hundred eighteen thousand, four hundred eighty-one".

Divisors: 1 3 164772827 494318481