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494486031 = 31312679129
BaseRepresentation
bin11101011110010…
…100001000001111
31021110110111022110
4131132110020033
52003042023111
6121022315103
715153030144
oct3536241017
91243414273
10494486031
11234140746
12119728a93
137b5a43b0
144995c3cb
152d6295a6
hex1d79420f

494486031 has 8 divisors (see below), whose sum is σ = 710031280. Its totient is φ = 304299072.

The previous prime is 494486017. The next prime is 494486059. The reversal of 494486031 is 130684494.

It is a happy number.

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

It is not a de Polignac number, because 494486031 - 215 = 494453263 is a prime.

It is a super-2 number, since 2×4944860312 = 489032869708265922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 12679129 = 494486031 / (4 + 9 + 4 + 4 + 8 + 6 + 0 + 3 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494486011) 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, 6339526 + ... + 6339603.

It is an arithmetic number, because the mean of its divisors is an integer number (88753910).

Almost surely, 2494486031 is an apocalyptic number.

494486031 is a deficient number, since it is larger than the sum of its proper divisors (215545249).

494486031 is a wasteful number, since it uses less digits than its factorization.

494486031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12679145.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 494486031 is about 22237.0418671189. The cubic root of 494486031 is about 790.7721079222.

The spelling of 494486031 in words is "four hundred ninety-four million, four hundred eighty-six thousand, thirty-one".

Divisors: 1 3 13 39 12679129 38037387 164828677 494486031